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instance method

OptionParser#on_tail

on_tail(*params, &block)

# File tmp/rubies/ruby-3.0.5/lib/optparse.rb, line 1562
def on_tail(*opts, &block)
  define_tail(*opts, &block)
  self
end

Add option switch like with on, but at tail of summary.

See also #on_head #order #on #order! also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.1