[PATCH] searchidx: use cached local $@ copy

[Eric Wong]

umask should never fail and set $@, but use the cached local
to be more explicit just in case.
---
 lib/PublicInbox/SearchIdx.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/PublicInbox/SearchIdx.pm b/lib/PublicInbox/SearchIdx.pm
index 8a529c6..de2536c 100644
--- a/lib/PublicInbox/SearchIdx.pm
+++ b/lib/PublicInbox/SearchIdx.pm
@@ -620,7 +620,7 @@ sub with_umask {
        my $rv = eval { $cb->() };
        my $err = $@;
        umask $old;
-       die $err if $@;
+       die $err if $err;
        $rv;
 }
 
-- 
EW