Improve some GUC description strings

It is not our usual style to use "we" in messages.  Also, remove some
noise words.  Backpatch to 15.

Noted by Kyotaro Horiguchi.

Discussion: https://postgr.es/m/20220914.111507.13049297635620898.horikyota.ntt@gmail.com

diff --git a/src/backend/utils/misc/guc_tables.c b/src/backend/utils/misc/guc_tables.c
index 550e95056c0f9ebd5be219ad8edb6dfac3d9e6f5..ab3140ff3af9dbfa5a2bd42930f18b353921e9de 100644 (file)
--- a/src/backend/utils/misc/guc_tables.c
+++ b/src/backend/utils/misc/guc_tables.c
@@ -2591,7 +2591,7 @@ struct config_int ConfigureNamesInt[] =
    {
        {"wal_decode_buffer_size", PGC_POSTMASTER, WAL_RECOVERY,
            gettext_noop("Buffer size for reading ahead in the WAL during recovery."),
-           gettext_noop("This controls the maximum distance we can read ahead in the WAL to prefetch referenced data blocks."),
+           gettext_noop("Maximum distance to read ahead in the WAL to prefetch referenced data blocks."),
            GUC_UNIT_BYTE
        },
        &wal_decode_buffer_size,
@@ -3248,7 +3248,7 @@ struct config_int ConfigureNamesInt[] =
    {
        {"tcp_keepalives_count", PGC_USERSET, CONN_AUTH_TCP,
            gettext_noop("Maximum number of TCP keepalive retransmits."),
-           gettext_noop("This controls the number of consecutive keepalive retransmits that can be "
+           gettext_noop("Number of consecutive keepalive retransmits that can be "
                         "lost before a connection is considered dead. A value of 0 uses the "
                         "system default."),
        },