check-ref-format --branch: do not expand @{...} outside repository

diff --git a/git-add--interactive.perl b/git-add--interactive.perl
index 709a5f6ce6fbdb2da14084e94ae9df1db1c3d0a6..c55c612455205a045bbcae134fa6eeb2c2a3a5bb 100755 (executable)
--- a/git-add--interactive.perl
+++ b/git-add--interactive.perl
@@ -1085,7 +1085,7 @@ sub edit_hunk_manually {
 
        open $fh, '<', $hunkfile
                or die sprintf(__("failed to open hunk edit file for reading: %s"), $!);
-       my @newtext = grep { !/^$comment_line_char/ } <$fh>;
+       my @newtext = grep { !/^\Q$comment_line_char\E/ } <$fh>;
        close $fh;
        unlink $hunkfile;
 
@@ -1140,6 +1140,7 @@ sub prompt_yesno {
        while (1) {
                print colored $prompt_color, $prompt;
                my $line = prompt_single_character;
+               return undef unless defined $line;
                return 0 if $line =~ /^n/i;
                return 1 if $line =~ /^y/i;
        }