Add translator comment

Otherwise the message is not very clear.

Backpatch-through: 18

diff --git a/src/backend/replication/syncrep.c b/src/backend/replication/syncrep.c
index cc35984ad00857341030a3ff260fba7e834fc19e..576320f952f043318449cf8be959cae18ae01ad1 100644 (file)
--- a/src/backend/replication/syncrep.c
+++ b/src/backend/replication/syncrep.c
@@ -1078,6 +1078,7 @@ check_synchronous_standby_names(char **newval, void **extra, GucSource source)
                        if (syncrep_parse_error_msg)
                                GUC_check_errdetail("%s", syncrep_parse_error_msg);
                        else
+                               /* translator: %s is a GUC name */
                                GUC_check_errdetail("\"%s\" parser failed.",
                                                                        "synchronous_standby_names");
                        return false;