Tab complete second argument to \c with role names.

Ian Barwick

src/bin/psql/tab-complete.c

@@ -3704,6 +3704,8 @@ psql_completion(const char *text, int start, int end)
 	}
 	else if (strcmp(prev_wd, "\\connect") == 0 || strcmp(prev_wd, "\\c") == 0)
 		COMPLETE_WITH_QUERY(Query_for_list_of_databases);
+	else if (strcmp(prev2_wd, "\\connect") == 0 || strcmp(prev2_wd, "\\c") == 0)
+		COMPLETE_WITH_QUERY(Query_for_list_of_roles);
 
 	else if (strncmp(prev_wd, "\\da", strlen("\\da")) == 0)
 		COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_aggregates, NULL);