gclient: fix deletion warning for checkouts created with "gclient config --name ."

BUG=skia:1945

Review URL: https://codereview.chromium.org/226613011

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@263081 0039d316-1c4b-4281-b951-d872f2087c98

gclient_scm.py

@@ -353,7 +353,10 @@ class GitWrapper(SCMWrapper):
          not os.path.exists(os.path.join(self.checkout_path, '.git')))):
       if (os.path.isdir(self.checkout_path) and
           not os.path.exists(os.path.join(self.checkout_path, '.git'))):
-        self._DeleteOrMove(options.force)
+        # This is a little hack to work around checkouts which are created
+        # using "gclient config --name ."
+        if not self.relpath == '.':
+          self._DeleteOrMove(options.force)
       self._Clone(revision, url, options)
       self._UpdateBranchHeads(options, fetch=True)
       if file_list is not None: