parse: Don't leave expr->mode_cmp uninitialized

When adding support for -perm +7777, I introduced an unconditional break
that should have been conditional.  The bug was observable with

    $ ./tests.sh --verbose --bfs="valgrind $PWD/bfs" test_perm_leading_plus_symbolic

Fixes: 7f8bacca4c2b1d35bb65ddf8cbf70fadf1adf66e

1 files changed, 1 insertions, 1 deletions

diff --git a/parse.c b/parse.c
index 2811004..36c8399 100644
--- a/parse.c
+++ b/parse.c
@@ -1826,8 +1826,8 @@ static struct expr *parse_perm(struct parser_state *state, int field, int arg2)
 		if (mode[1] >= '0' && mode[1] <= '9') {
 			expr->mode_cmp = MODE_ANY;
 			++mode;
+			break;
 		}
-		break;
 	default:
 		expr->mode_cmp = MODE_EXACT;
 		break;