Apply global `debug_min` from `ups.conf` also to `upsdrvctl` tool#3277

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jimklimov wants to merge 5 commits intonetworkupstools:masterfrom

jimklimov:issue-3276

Commits on Jan 23, 2026

drivers/upsdrvctl.c, NEWS.adoc, conf/ups.conf.sample, docs: apply global debug_min from ups.conf also to upsdrvctl tool itself [#3276]
jimklimov
committed
drivers/upsdrvctl.c: if we fail to stop a driver by signal, retry to "exit" it by protocol [#3277]
jimklimov
committed
drivers/upsdrvquery.c: protect upsdrvquery_close() from SIGPIPE crash if the other side exited [#3277]
jimklimov
committed
drivers/upsdrvquery.{c,h}: separate upsdrvquery_ping() from upsdrvquery_prepare() [#3277]
jimklimov
committed
drivers/upsdrvctl.c: upsdrvquery_ping() after telling the driver to stop, so upsdrvctl exits when the driver is gone [#3277]
jimklimov
committed