Fix typo

Author: petere

src/backend/parser/parse_cte.c

@@ -524,7 +524,7 @@ analyzeCTE(ParseState *pstate, CommonTableExpr *cte)
 				   cte->cycle_clause->cycle_path_column) == 0)
 			ereport(ERROR,
 					errcode(ERRCODE_SYNTAX_ERROR),
-					errmsg("search_sequence column name and cycle path column name are the same"),
+					errmsg("search sequence column name and cycle path column name are the same"),
 					parser_errposition(pstate, cte->search_clause->location));
 	}
 }

src/test/regress/expected/with.out

@@ -1253,7 +1253,7 @@ with recursive search_graph(f, t, label) as (
 ) search depth first by f, t set foo
   cycle f, t set is_cycle to true default false using foo
 select * from search_graph;
-ERROR:  search_sequence column name and cycle path column name are the same
+ERROR:  search sequence column name and cycle path column name are the same
 LINE 7: ) search depth first by f, t set foo
           ^
 -- test ruleutils and view expansion