send-email: fix nasty bug in ask() function

[thirdparty/git.git] / git-send-email.perl

diff --git a/git-send-email.perl b/git-send-email.perl
index 6bbdfec84983b23d3ab380e63975987b6078b4ca..172b53c2d5b8ccad6a1bee592bccbe27d8f3127c 100755 (executable)
--- a/git-send-email.perl
+++ b/git-send-email.perl
@@ -608,7 +608,7 @@ EOT
 
 sub ask {
        my ($prompt, %arg) = @_;
-       my $valid_re = $arg{valid_re} || ""; # "" matches anything
+       my $valid_re = $arg{valid_re};
        my $default = $arg{default};
        my $resp;
        my $i = 0;
@@ -624,7 +624,7 @@ sub ask {
                if ($resp eq '' and defined $default) {
                        return $default;
                }
-               if ($resp =~ /$valid_re/) {
+               if (!defined $valid_re or $resp =~ /$valid_re/) {
                        return $resp;
                }
        }