pg_upgrade: Adjust quoting style in message to match guidelines

diff --git a/src/bin/pg_upgrade/check.c b/src/bin/pg_upgrade/check.c
index cc4a4fd104e2473f132eebef09bdc0676669e2fe..54e3eb3bb77d53b495c8c1fc09ab0944b0d0c80f 100644 (file)
--- a/src/bin/pg_upgrade/check.c
+++ b/src/bin/pg_upgrade/check.c
@@ -1094,10 +1094,10 @@ check_for_incompatible_polymorphics(ClusterInfo *cluster)
        fclose(script);
        pg_log(PG_REPORT, "fatal\n");
        pg_fatal("Your installation contains user-defined objects that refer to internal\n"
-                "polymorphic functions with arguments of type 'anyarray' or 'anyelement'.\n"
+                "polymorphic functions with arguments of type \"anyarray\" or \"anyelement\".\n"
                 "These user-defined objects must be dropped before upgrading and restored\n"
                 "afterwards, changing them to refer to the new corresponding functions with\n"
-                "arguments of type 'anycompatiblearray' and 'anycompatible'.\n"
+                "arguments of type \"anycompatiblearray\" and \"anycompatible\".\n"
                 "A list of the problematic objects is in the file:\n"
                 "    %s\n\n", output_path);
    }