Description of problem:
When the POT filename is beginning from the underscore, such as _Exit.2.pot, zanata-cli always fails due to:
[main] ERROR org.zanata.client.commands.push.PushCommand - Operation failed: Error status 404 Not Found returned
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1.push the pot file to the server
the above error happens.