Fix globbing to exclude directories (#187)
Fix globbing to exclude directories (#187)

Previously, a tmp.rs directory would trigger the display of the rust
version in the prompt, despite clearly not being a rust file. As such,
this commit adds globbing qualifiers to exclude directories.
bytefluxio/spaceship-zsh-theme,denysdovhan/spaceship-zsh-theme,nelsonghezzi/spaceship-zsh-theme