This method is only available on newer versions.
The first available version (v2_6_3) is shown here.
unshift(arg)
private
No documentation available.
# File lib/bundler/vendor/thor/lib/thor/parser/arguments.rb, line 76
def unshift(arg)
if arg.is_a?(Array)
@pile = arg + @pile
else
@pile.unshift(arg)
end
end