kraih/mojo — pull request #400 by alexbyk (2012-10-20 04:58:25+00:00)
Title: fix annoying warning in Test::Mojo

unlike $t->header_isnt, $t->header_unlike(Header => qr/regexp/) generates annoying warnings when Mojo::Headers does not contain a "Header" header
Test:
```perl
#!/usr/bin/env perl
use Mojo::Base -strict;
use Test::More tests => 2;
use Test::Mojo;
use Mojolicious::Lite;

my $t = Test::Mojo->new();

local $SIG{__WARN__} = sub {
fail "annoying warning: " . shift;
};

$t->get_ok('/')->header_unlike(NotExisting => qr/Foo/);
```