PutDescription: Use present tense for commit message

Also do not terminate the commit subject with '.'.

This makes the commit message consistent with other commit messages that
are used by Gerrit.

Signed-off-by: Edwin Kempin <ekempin@google.com>
Change-Id: I093538665db9b884ad15f248667e2f13dd632cd1
diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/project/PutDescription.java b/gerrit-server/src/main/java/com/google/gerrit/server/project/PutDescription.java
index 78230bd..5c1d41b 100644
--- a/gerrit-server/src/main/java/com/google/gerrit/server/project/PutDescription.java
+++ b/gerrit-server/src/main/java/com/google/gerrit/server/project/PutDescription.java
@@ -63,7 +63,7 @@
 
       String msg =
           MoreObjects.firstNonNull(
-              Strings.emptyToNull(input.commitMessage), "Updated description.\n");
+              Strings.emptyToNull(input.commitMessage), "Update description\n");
       if (!msg.endsWith("\n")) {
         msg += "\n";
       }