info: Print a newline after printing the superproject's revision

Change-Id: Ib20233dad4e1f1fd54dbf5ca0324be22fe0e4db1
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/528463
Reviewed-by: Gavin Mak <gavinmak@google.com>
Commit-Queue: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
Tested-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
Reviewed-by: Mike Frysinger <vapier@google.com>

subcmds/info.py

@@ -106,6 +106,7 @@ class Info(PagedCommand):
         srev = sp.commit_id if sp and sp.commit_id else "None"
         self.heading("Superproject revision: ")
         self.headtext(srev)
+        self.out.nl()
 
         self.printSeparator()