Add committer param to logEntry template.

The param is unused in the 'default' variant, but it's in the map and
needs to be listed if it's going to be used in other variants
(soy insists that declarations match on all variants).

Change-Id: I559dc24b33f04883d0a92301b62b5d790be85d6a

gitiles-servlet/src/main/resources/com/google/gitiles/templates/LogDetail.soy

diff --git a/gitiles-servlet/src/main/resources/com/google/gitiles/templates/LogDetail.soy b/gitiles-servlet/src/main/resources/com/google/gitiles/templates/LogDetail.soy
index a3676d9..ebde274 100644
--- a/gitiles-servlet/src/main/resources/com/google/gitiles/templates/LogDetail.soy
+++ b/gitiles-servlet/src/main/resources/com/google/gitiles/templates/LogDetail.soy
@@ -84,7 +84,8 @@
  * @param abbrevSha abbreviated SHA-1.
  * @param url URL to commit detail page.
  * @param shortMessage short commit message.
- * @param author author information with at least "name" and "relativeTime" keys.
+ * @param author author information with at least "name", "time", and "relativeTime" keys.                                                                                                                |e
+ * @param committer committer information with at least "name", "time", and "relativeTime" keys.
  * @param branches list of branches for this entry, with "name" and "url" keys.
  * @param tags list of tags for this entry, with "name" and "url" keys.
  */