ansible/ansible — pull request #8995 by mscherer (2014-09-13 10:38:15+00:00)
Title: Do not remove local role file if given on the commandline

using this (for testing purpose):

$ ansible-galaxy install COPYING
- error: the file downloaded was not a tar.gz
- COPYING was NOT installed successfully.
- you can use --ignore-errors to skip failed roles.

this result in COPYING being erased, which is surprising for the user.
This also prevent erasing requirements.yml if someone use the wrong flag.