Fix always displaying system ruby when set by asdf

Since the asdf-ruby integration with bobthefish was written, asdf has changed their ruby version provenance format.
`asdf current ruby 2>/dev/null | read -l asdf_ruby_version asdf_provenance` now results in $asdf_provenance being "   (set by $HOME/.tool-versions)", which results in the system ruby version always being displayed, which is annoying. This is a small patch to fix that. I've tested it locally.
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Patrick 2020-04-29 16:19:43 -07:00 committed by GitHub
parent 6e75f31c3f
commit e9f9496d6b
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