pg_publication repetitious code

Alvaro Herrera <alvherre@2ndquadrant.com> writes:

This very small patch removes some duplicated code in pg_publication.

Seems like the extra test on missing_oid is unnecessary:

+	oid = get_publication_oid(pubname, missing_ok);
+	if (!OidIsValid(oid) && missing_ok)
+		return NULL;

As coded, it's get_publication_oid's job to deal with that.

Otherwise +1

regards, tom lane