instance method
OptionParser#banner
() -> ::String
banner
lib/optparse.rb
View on GitHub ↗
# File tmp/rubies/ruby-4.0.0/lib/optparse.rb, line 1282
def banner
unless @banner
@banner = +"Usage: #{program_name} [options]"
visit(:add_banner, @banner)
end
@banner
end
Heading banner preceding summary.