Fix bogus tab-completion queries.

My (tgl's) thinko in commit 02b8048: I forgot that the first
argument of COMPLETE_WITH_QUERY_PLUS is a format string, and
hence failed to double a literal %.  These two places seem to
be the only ones that are wrong, though.

Vignesh C

Discussion: https://postgr.es/m/CALDaNm0hBO+tZqBWhBjTVxyET1GWANq5K9XpQ07atSxnFXbG7w@mail.gmail.com

Author: tglsfdc

src/bin/psql/tab-complete.c

@@ -1811,7 +1811,7 @@ psql_completion(const char *text, int start, int end)
 		COMPLETE_WITH("(", "ALL TABLES IN SCHEMA", "TABLE");
 	else if (Matches("ALTER", "PUBLICATION", MatchAny, "ADD|DROP|SET", "ALL", "TABLES", "IN", "SCHEMA"))
 		COMPLETE_WITH_QUERY_PLUS(Query_for_list_of_schemas
-								 " AND nspname NOT LIKE E'pg\\\\_%'",
+								 " AND nspname NOT LIKE E'pg\\\\_%%'",
 								 "CURRENT_SCHEMA");
 	/* ALTER PUBLICATION <name> SET ( */
 	else if (HeadMatches("ALTER", "PUBLICATION", MatchAny) && TailMatches("SET", "("))
@@ -2956,7 +2956,7 @@ psql_completion(const char *text, int start, int end)
 	 */
 	else if (Matches("CREATE", "PUBLICATION", MatchAny, "FOR", "ALL", "TABLES", "IN", "SCHEMA"))
 		COMPLETE_WITH_QUERY_PLUS(Query_for_list_of_schemas
-								 " AND nspname NOT LIKE E'pg\\\\_%'",
+								 " AND nspname NOT LIKE E'pg\\\\_%%'",
 								 "CURRENT_SCHEMA");
 	else if (Matches("CREATE", "PUBLICATION", MatchAny, "FOR", "ALL", "TABLES", "IN", "SCHEMA", MatchAny) && (!ends_with(prev_wd, ',')))
 		COMPLETE_WITH("WITH (");