fix sigint

Author: krakjoe

phpdbg.c

@@ -446,8 +446,8 @@ static inline void phpdbg_sigint_handler(int signo) /* {{{ */
 	TSRMLS_FETCH();
 
 	if (EG(in_execution)) {
-		/* we don't want to set signalled while phpdbg is not interactive */
-		if (PHPDBG_G(flags) & PHPDBG_IS_INTERACTIVE) {
+		/* set signalled only when not interactive */
+		if (!(PHPDBG_G(flags) & PHPDBG_IS_INTERACTIVE)) {
 			PHPDBG_G(flags) |= PHPDBG_IS_SIGNALED;
 		}
 	} else {