Merge pull request OSGeo#3760 from rouault/proj_ini_defaults

proj.ini: set default values of parameter to be consistent, and some …

Author: rouault

data/proj.ini

@@ -4,15 +4,26 @@
 
 ; Network capabilities disabled by default.
 ; Can be overridden with the PROJ_NETWORK=ON environment variable.
-; network = on
+; Cf https://proj.org/en/latest/usage/network.html
+; Valid values = on, off
+network = off
 
+; Endpoint of the Content Delivery Network where remote resources might
+; be accessed. Only used if network access is allowed (cf above "network"
+; option)
 ; Can be overridden with the PROJ_NETWORK_ENDPOINT environment variable.
 cdn_endpoint = https://cdn.proj.org
 
+; Whether to enable a cache of remote resources that are accessed, on the
+; local file system
+; Valid values = on, off
 cache_enabled = on
 
+; Size of the cache in megabytes
 cache_size_MB = 300
 
+; Time-to-live delay in seconds before already accessed remote resources are
+; acessed again to check if they have been updated.
 cache_ttl_sec = 86400
 
 ; Can be set to on so that by default the lack of a known resource files needed
@@ -23,7 +34,8 @@ cache_ttl_sec = 86400
 ; passed to the proj_create_crs_to_crs() method, or with the --only-best
 ; option of the cs2cs program.
 ; (added in PROJ 9.2)
-; only_best_default = on
+; Valid values = on, off
+only_best_default = off
 
 ; Filename of the Certificate Authority (CA) bundle.
 ; Can be overriden with the PROJ_CURL_CA_BUNDLE / CURL_CA_BUNDLE environment variable.