Log the location where we start to search .gclient for

gclient.py

Index: gclient.py
diff --git a/gclient.py b/gclient.py
index 7ba378a7d2fabf20c13296c9269ce4fd46df8514..e854a49b0afdce6d3f7715e16fc895992597d820 100755
--- a/gclient.py
+++ b/gclient.py
@@ -1378,6 +1378,8 @@ been automagically updated.  The previous version is available at %s.old.
       client = GClient('.', options)
       client.SetConfig(options.spec)
     else:
+      print ('Looking for %s starting from %s', options.config_filename,
+             os.getcwd())
       path = gclient_utils.FindGclientRoot(os.getcwd(), options.config_filename)

[Paweł Hajdan Jr., 2016/03/11 22:26:13]

While you're here, why not instrument FindGclientRoot as well?

It has e.g. these "might not be the file you want to use" messages, which I
think sometimes trigger for legitimate workspaces, I was never sure why.

Up to you.

[Sergiy Byelozyorov, 2016/03/11 22:29:00]

Not sure what to instrument inside FindGclientRoot. The message you are
referring to is shown when .gclient_entities is missing and the code is not sure
if the directory you are calling gclient-sync from is part of the checkout or
not.

       if not path:
         return None