Hyperlink task footers on review-dev

Add a commentlink entry which matches task footers in commit
messages and links them to the corresponding task URL on
storyboard-dev. This has already been tested manually on review-dev,
and seems to work without breaking the separate its-storyboard entry
which handles task updating automation.

Change-Id: Iea9bde67432249e7314917ff63d6ee5e16a80f25

modules/openstack_project/manifests/review_dev.pp

@@ -102,6 +102,11 @@ class openstack_project::review_dev (
           match => '\\\\b[Ss]tory:? #?(\\\\d+)',
           link  => 'https://storyboard-dev.openstack.org/#!/story/$1',
         },
+        {
+          name  => 'task',
+          match => '\\\\b[Tt]ask:? #?(\\\\d+)',
+          link  => 'https://storyboard-dev.openstack.org/#!/task/$1',
+        },
         {
           name  => 'its-storyboard',
           match => '\\\\b[Tt]ask:? #?(\\\\d+)',