Fix test suite failure on other side of date line.

debian/changelog

@@ -1,3 +1,9 @@
+ikiwiki (3.20100927) UNRELEASED; urgency=low
+
+  * Fix test suite failure on other side of date line.
+
+ -- Joey Hess <joeyh@debian.org>  Wed, 29 Sep 2010 11:58:23 -0400
+
 ikiwiki (3.20100926) unstable; urgency=low
 
   * meta: Ensure that the url specified by xrds-location is absolute.

t/pagespec_match.t

@@ -101,6 +101,7 @@ ok(pagespec_match("ook", "link(blog/tags/foo)"), "link internal absolute success
 ok(pagespec_match("ook", "link(/blog/tags/foo)"), "link explicit absolute success");
 ok(pagespec_match("meh", "!link(done)"), "negated failing match is a success");
 
+$ENV{TZ}="GMT";
 $IkiWiki::pagectime{foo}=1154532692; # Wed Aug  2 11:26 EDT 2006
 $IkiWiki::pagectime{bar}=1154532695; # after
 ok(pagespec_match("foo", "created_before(bar)"));