Fix off-by-one error in gclient progress indicator.

BUG=368673
R=iannucci@chromium.org,cmp@chromium.org

Review URL: https://codereview.chromium.org/412403002

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@285434 0039d316-1c4b-4281-b951-d872f2087c98

gclient_utils.py

@@ -797,9 +797,11 @@ class ExecutionQueue(object):
     try:
       self.queued.append(d)
       total = len(self.queued) + len(self.ran) + len(self.running)
+      if self.jobs == 1:
+        total += 1
       logging.debug('enqueued(%s)' % d.name)
       if self.progress:
-        self.progress._total = total + 1
+        self.progress._total = total
         self.progress.update(0)
       self.ready_cond.notifyAll()
     finally: