Eliminate unneeded variables (style).
Add exemption for resucuing Exception (lol, funny).
Use next in #each blocks (style).
Remove redundant uses of #to_s in interpolation (style).
Fix indendation alignment nitpicks (style).
Refactor Color.escape.
Remove shadowed outer variables in block params (style).
Remove spacing between ! and boolean in Command::Test#call (style).
Fix array alignments (style).