fixing imap_undelete to accept 2 or 3 arguments, not 3 or 4.

ext/imap/imap.c

@@ -1573,7 +1573,7 @@ PHP_FUNCTION(imap_undelete)
 	pils *imap_le_struct;
 	int myargc=ARG_COUNT(ht);
 
-	if ( myargc < 3 || myargc > 4 || getParameters(ht,myargc,&streamind,&sequence,&flags) == FAILURE) {
+	if ( myargc < 2 || myargc > 3 || getParameters(ht,myargc,&streamind,&sequence,&flags) == FAILURE) {
 		WRONG_PARAM_COUNT;
 	}
 	convert_to_long(streamind);
@@ -1587,7 +1587,7 @@ PHP_FUNCTION(imap_undelete)
 		RETURN_FALSE;
 	}
 
-	mail_clearflag_full(imap_le_struct->imap_stream,sequence->value.str.val,"\\DELETED",myargc == 4 ? flags->value.lval : NIL);
+	mail_clearflag_full(imap_le_struct->imap_stream,sequence->value.str.val,"\\DELETED",myargc == 3 ? flags->value.lval : NIL);
 	RETVAL_TRUE;
 }
 /* }}} */