notmuch-mutt: fix Perl syntax of hash index lookups

Fixes: commit 239fdbbbf0cbd6cd6ebafb87e88cdb3cded75364

diff --git a/contrib/notmuch-mutt/notmuch-mutt b/contrib/notmuch-mutt/notmuch-mutt
index 1ac68065f70384fd50e3b521818685c851508401..b81252c809a8e3ed2fae56fd8e2bb14a6e56ed09 100755 (executable)
--- a/contrib/notmuch-mutt/notmuch-mutt
+++ b/contrib/notmuch-mutt/notmuch-mutt
@@ -67,7 +67,7 @@ sub check_search_cache_maildir($) {
     foreach my $d (@contents) {
         -l "$maildir/$d" and die_dir( $maildir, "contains symlink $d");
         -d "$maildir/$d" or die_dir( $maildir, "contains non-directory $d");
-        exists($required[$d]) or die_dir( $maildir, "contains directory $d");
+        exists($required{$d}) or die_dir( $maildir, "contains directory $d");
     }
 }