Plug a couple of minor memory leaks

servers/slapd/mr.c

@@ -180,6 +180,8 @@ register_matching_rule(
 		convert, normalize, match, indexer, filter,
 		&err );
 
+	ldap_memfree( mr );
+
 	if ( code ) {
 		Debug( LDAP_DEBUG_ANY, "Error in register_syntax: %s for %s in %s\n",
 		    scherr2str(code), err, desc );

servers/slapd/syntax.c

@@ -156,6 +156,9 @@ register_syntax(
 	}
 
 	code = syn_add( syn, flags, validate, ber2str, str2ber, &err );
+
+	ldap_memfree( syn );
+
 	if ( code ) {
 		Debug( LDAP_DEBUG_ANY, "Error in register_syntax: %s %s in %s\n",
 		    scherr2str(code), err, desc );