changelog: fix invalid url name left over from cherry picking

rhodecode/templates/changelog/changelog.html

@@ -40,7 +40,7 b''
                         <a title="${_('Compare fork with %s' % c.rhodecode_db_repo.fork.repo_name)}" href="${h.url('compare_url',repo_name=c.rhodecode_db_repo.fork.repo_name,org_ref_type='branch',org_ref='default',other_repo=c.repo_name,other_ref_type='branch',other_ref=request.GET.get('branch') or 'default')}" class="ui-btn small">${_('Compare fork with parent')}</a>
                     %endif
                     %if h.is_hg(c.rhodecode_repo):
-                    <a id="open_new_pr" href="${h.url('pullrequest_form',repo_name=c.repo_name)}" class="ui-btn small">${_('Open new pull request')}</a>
+                    <a id="open_new_pr" href="${h.url('pullrequest_home',repo_name=c.repo_name)}" class="ui-btn small">${_('Open new pull request')}</a>
                     %endif
                     </div>
                     <div class="container_header">