Merge #14100: doc: Change documentation for =0 for non-boolean options

e9a78e9 doc: Change documentation for =0 for non-boolean options (Wladimir J. van der Laan)

Pull request description:

  PR #12713 changed the interpretation for negation of non-boolean options (e.g. -noconnect) to no longer set the option to `0`, but to remove it from the options.

  I think this is better because it gets rid of the special meaning of `'0'`.

  However it needs to be documented. I attempt to do so in this PR.
  Addresses #14064.

  There might be options I missed, please help check:
  - `-connect`
  - `-proxy`
  - `-onion`
  - `-debug`
  - `-debuglogfile`

  Needs a manpage update.

Tree-SHA512: a69e63e04a6c8bf6f61a58ddc0f5ebd4b9af7a2e0ea5174e668f2e3edd31a541910a125605ca4bfccf3aca6e59267d98a66de9d1e73650f48c8a1828d315d35d

Author: MarcoFalke

src/init.cpp

@@ -368,7 +368,7 @@ void SetupServerArgs()
     gArgs.AddArg("-datadir=<dir>", "Specify data directory", false, OptionsCategory::OPTIONS);
     gArgs.AddArg("-dbbatchsize", strprintf("Maximum database write batch size in bytes (default: %u)", nDefaultDbBatchSize), true, OptionsCategory::OPTIONS);
     gArgs.AddArg("-dbcache=<n>", strprintf("Set database cache size in megabytes (%d to %d, default: %d)", nMinDbCache, nMaxDbCache, nDefaultDbCache), false, OptionsCategory::OPTIONS);
-    gArgs.AddArg("-debuglogfile=<file>", strprintf("Specify location of debug log file. Relative paths will be prefixed by a net-specific datadir location. (0 to disable; default: %s)", DEFAULT_DEBUGLOGFILE), false, OptionsCategory::OPTIONS);
+    gArgs.AddArg("-debuglogfile=<file>", strprintf("Specify location of debug log file. Relative paths will be prefixed by a net-specific datadir location. (-nodebuglogfile to disable; default: %s)", DEFAULT_DEBUGLOGFILE), false, OptionsCategory::OPTIONS);
     gArgs.AddArg("-feefilter", strprintf("Tell other nodes to filter invs to us by our mempool min fee (default: %u)", DEFAULT_FEEFILTER), true, OptionsCategory::OPTIONS);
     gArgs.AddArg("-includeconf=<file>", "Specify additional configuration file, relative to the -datadir path (only useable from configuration file, not command line)", false, OptionsCategory::OPTIONS);
     gArgs.AddArg("-loadblock=<file>", "Imports blocks from external blk000??.dat file on startup", false, OptionsCategory::OPTIONS);
@@ -400,7 +400,7 @@ void SetupServerArgs()
     gArgs.AddArg("-banscore=<n>", strprintf("Threshold for disconnecting misbehaving peers (default: %u)", DEFAULT_BANSCORE_THRESHOLD), false, OptionsCategory::CONNECTION);
     gArgs.AddArg("-bantime=<n>", strprintf("Number of seconds to keep misbehaving peers from reconnecting (default: %u)", DEFAULT_MISBEHAVING_BANTIME), false, OptionsCategory::CONNECTION);
     gArgs.AddArg("-bind=<addr>", "Bind to given address and always listen on it. Use [host]:port notation for IPv6", false, OptionsCategory::CONNECTION);
-    gArgs.AddArg("-connect=<ip>", "Connect only to the specified node; -connect=0 disables automatic connections (the rules for this peer are the same as for -addnode). This option can be specified multiple times to connect to multiple nodes.", false, OptionsCategory::CONNECTION);
+    gArgs.AddArg("-connect=<ip>", "Connect only to the specified node; -noconnect disables automatic connections (the rules for this peer are the same as for -addnode). This option can be specified multiple times to connect to multiple nodes.", false, OptionsCategory::CONNECTION);
     gArgs.AddArg("-discover", "Discover own IP addresses (default: 1 when listening and no -externalip or -proxy)", false, OptionsCategory::CONNECTION);
     gArgs.AddArg("-dns", strprintf("Allow DNS lookups for -addnode, -seednode and -connect (default: %u)", DEFAULT_NAME_LOOKUP), false, OptionsCategory::CONNECTION);
     gArgs.AddArg("-dnsseed", "Query for peer addresses via DNS lookup, if low on addresses (default: 1 unless -connect used)", false, OptionsCategory::CONNECTION);
@@ -414,12 +414,12 @@ void SetupServerArgs()
     gArgs.AddArg("-maxsendbuffer=<n>", strprintf("Maximum per-connection send buffer, <n>*1000 bytes (default: %u)", DEFAULT_MAXSENDBUFFER), false, OptionsCategory::CONNECTION);
     gArgs.AddArg("-maxtimeadjustment", strprintf("Maximum allowed median peer time offset adjustment. Local perspective of time may be influenced by peers forward or backward by this amount. (default: %u seconds)", DEFAULT_MAX_TIME_ADJUSTMENT), false, OptionsCategory::CONNECTION);
     gArgs.AddArg("-maxuploadtarget=<n>", strprintf("Tries to keep outbound traffic under the given target (in MiB per 24h), 0 = no limit (default: %d)", DEFAULT_MAX_UPLOAD_TARGET), false, OptionsCategory::CONNECTION);
-    gArgs.AddArg("-onion=<ip:port>", "Use separate SOCKS5 proxy to reach peers via Tor hidden services (default: -proxy)", false, OptionsCategory::CONNECTION);
+    gArgs.AddArg("-onion=<ip:port>", "Use separate SOCKS5 proxy to reach peers via Tor hidden services, set -noonion to disable (default: -proxy)", false, OptionsCategory::CONNECTION);
     gArgs.AddArg("-onlynet=<net>", "Make outgoing connections only through network <net> (ipv4, ipv6 or onion). Incoming connections are not affected by this option. This option can be specified multiple times to allow multiple networks.", false, OptionsCategory::CONNECTION);
     gArgs.AddArg("-peerbloomfilters", strprintf("Support filtering of blocks and transaction with bloom filters (default: %u)", DEFAULT_PEERBLOOMFILTERS), false, OptionsCategory::CONNECTION);
     gArgs.AddArg("-permitbaremultisig", strprintf("Relay non-P2SH multisig (default: %u)", DEFAULT_PERMIT_BAREMULTISIG), false, OptionsCategory::CONNECTION);
     gArgs.AddArg("-port=<port>", strprintf("Listen for connections on <port> (default: %u, testnet: %u, regtest: %u)", defaultChainParams->GetDefaultPort(), testnetChainParams->GetDefaultPort(), regtestChainParams->GetDefaultPort()), false, OptionsCategory::CONNECTION);
-    gArgs.AddArg("-proxy=<ip:port>", "Connect through SOCKS5 proxy", false, OptionsCategory::CONNECTION);
+    gArgs.AddArg("-proxy=<ip:port>", "Connect through SOCKS5 proxy, set -noproxy to disable (default: disabled)", false, OptionsCategory::CONNECTION);
     gArgs.AddArg("-proxyrandomize", strprintf("Randomize credentials for every proxy connection. This enables Tor stream isolation (default: %u)", DEFAULT_PROXYRANDOMIZE), false, OptionsCategory::CONNECTION);
     gArgs.AddArg("-seednode=<ip>", "Connect to a node to retrieve peer addresses, and disconnect. This option can be specified multiple times to connect to multiple nodes.", false, OptionsCategory::CONNECTION);
     gArgs.AddArg("-timeout=<n>", strprintf("Specify connection timeout in milliseconds (minimum: 1, default: %d)", DEFAULT_CONNECT_TIMEOUT), false, OptionsCategory::CONNECTION);
@@ -467,7 +467,7 @@ void SetupServerArgs()
     gArgs.AddArg("-limitdescendantsize=<n>", strprintf("Do not accept transactions if any ancestor would have more than <n> kilobytes of in-mempool descendants (default: %u).", DEFAULT_DESCENDANT_SIZE_LIMIT), true, OptionsCategory::DEBUG_TEST);
     gArgs.AddArg("-vbparams=deployment:start:end", "Use given start/end times for specified version bits deployment (regtest-only)", true, OptionsCategory::DEBUG_TEST);
     gArgs.AddArg("-addrmantest", "Allows to test address relay on localhost", true, OptionsCategory::DEBUG_TEST);
-    gArgs.AddArg("-debug=<category>", strprintf("Output debugging information (default: %u, supplying <category> is optional)", 0) + ". " +
+    gArgs.AddArg("-debug=<category>", "Output debugging information (default: -nodebug, supplying <category> is optional). "
         "If <category> is not supplied or if <category> = 1, output all debugging information. <category> can be: " + ListLogCategories() + ".", false, OptionsCategory::DEBUG_TEST);
     gArgs.AddArg("-debugexclude=<category>", strprintf("Exclude debugging information for a category. Can be used in conjunction with -debug=1 to output debug logs for all categories except one or more specified categories."), false, OptionsCategory::DEBUG_TEST);
     gArgs.AddArg("-help-debug", "Show all debugging options (usage: --help -help-debug)", false, OptionsCategory::DEBUG_TEST);
@@ -480,7 +480,7 @@ void SetupServerArgs()
     gArgs.AddArg("-maxtxfee=<amt>", strprintf("Maximum total fees (in %s) to use in a single wallet transaction or raw transaction; setting this too low may abort large transactions (default: %s)",
         CURRENCY_UNIT, FormatMoney(DEFAULT_TRANSACTION_MAXFEE)), false, OptionsCategory::DEBUG_TEST);
     gArgs.AddArg("-printpriority", strprintf("Log transaction fee per kB when mining blocks (default: %u)", DEFAULT_PRINTPRIORITY), true, OptionsCategory::DEBUG_TEST);
-    gArgs.AddArg("-printtoconsole", "Send trace/debug info to console (default: 1 when no -daemon. To disable logging to file, set debuglogfile=0)", false, OptionsCategory::DEBUG_TEST);
+    gArgs.AddArg("-printtoconsole", "Send trace/debug info to console (default: 1 when no -daemon. To disable logging to file, set -nodebuglogfile)", false, OptionsCategory::DEBUG_TEST);
     gArgs.AddArg("-shrinkdebugfile", "Shrink debug.log file on client startup (default: 1 when no -debug)", false, OptionsCategory::DEBUG_TEST);
     gArgs.AddArg("-uacomment=<cmt>", "Append comment to the user agent string", false, OptionsCategory::DEBUG_TEST);