ReceiveCommits: Fix comment formatting

Change-Id: I9fd3b2c61dce7575f0bc13fef25b847c9d42c857
Signed-off-by: Edwin Kempin <ekempin@google.com>

java/com/google/gerrit/server/git/receive/ReceiveCommits.java

@@ -2954,7 +2954,7 @@ class ReceiveCommits {
       try {
         r.put(cd.change().getKey(), cd.notes());
       } catch (NoSuchChangeException e) {
-        //Ignore deleted change
+        // Ignore deleted change
       }
     }
     return r;