Bug 163570 - Bugzilla::Search missing Date::Format include

patch by jussi@comlink.fi (Jussi Sirpoma), r=bbaetz x2

webtools/bugzilla/Bugzilla/Search.pm

@@ -37,6 +37,8 @@ package Bugzilla::Search;
 
 use Bugzilla::Util;
 
+use Date::Format;
+
 # Create a new Search
 sub new {
     my $invocant = shift;