Adds a section with title and content to the parser help view. Used for adding
command arguments and default arguments.
# File lib/rubygems/command.rb, line 435
def add_parser_run_info title, content
return if content.empty?
@parser.separator nil
@parser.separator " #{title}:"
content.split(/\n/).each do |line|
@parser.separator " #{line}"
end
end