grep: adjust a redundant grep pattern type assignment

diff --git a/git-add--interactive.perl b/git-add--interactive.perl
index 709a5f6ce6fbdb2da14084e94ae9df1db1c3d0a6..0e8543c8652f2ec55dd9bc33d7d0a485d33aa9c7 100755 (executable)
--- a/git-add--interactive.perl
+++ b/git-add--interactive.perl
@@ -46,7 +46,6 @@
 my $normal_color = $repo->get_color("", "reset");
 
 my $diff_algorithm = $repo->config('diff.algorithm');
-my $diff_indent_heuristic = $repo->config_bool('diff.indentheuristic');
 my $diff_filter = $repo->config('interactive.difffilter');
 
 my $use_readkey = 0;
@@ -730,9 +729,6 @@ sub parse_diff {
        if (defined $diff_algorithm) {
                splice @diff_cmd, 1, 0, "--diff-algorithm=${diff_algorithm}";
        }
-       if ($diff_indent_heuristic) {
-               splice @diff_cmd, 1, 0, "--indent-heuristic";
-       }
        if (defined $patch_mode_revision) {
                push @diff_cmd, get_diff_reference($patch_mode_revision);
        }
@@ -1085,7 +1081,7 @@ 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 +1136,7 @@ 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;
        }