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 69611bef4ab65decaa647f36efe3139b8ce40384..2b3fafd94d43616dd8e76e506ac9caa27c77c29a 100644 (file)
--- a/src/bin/pg_upgrade/check.c
+++ b/src/bin/pg_upgrade/check.c
@@ -1124,10 +1124,10 @@ 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);
        }