Invalid git URI when calling :PlugStatus or :PlugClean #12
Description
When calling one of those commands, vim-plug confuses all plugins URIs with the URI of the current folder.
For example, running PlugStatus when in ~/.vim (which contains its own git repository) results in this:
Finished. 74 error(s).
x vim-cute-python:
Invalid URI: https://github.com/Xifax/yavir.git
Expected: https://git:@github.com/ehamberg/vim-cute-python.git
PlugClean required.
...
PlugInstall and PlugUpdate work perfectly well.