bin/rumai in rumai-3.3.0 vs bin/rumai in rumai-3.3.1

@@ -1,44 +1,16 @@
 #!/usr/bin/env ruby
-#
-# This is an interactive Ruby shell (IRB) for Rumai.
-#
-#
-# Usage:
-#
-#   rumai [Options] [STUFF_FOR_IRB]
-#
-#   STUFF_FOR_IRB : Arguments and options for `irb`.
-#
-#
-# Options:
-#
-#   -h, --help    : Show this message and exit.
-#
-#   -v, --version : Show version number and exit.
-#
 
 require 'rumai'
 
-# parse command line
 if ARGV.delete('-h') or ARGV.delete('--help')
-  # try to display UNIX version of help manual
-  man_path = File.join(Rumai::INSTDIR, 'man')
-  unless system 'man', '-M', man_path, '-a', 'rumai'
-    # try to display HTML version of help manual
-    man_html = man_path + '.html'
-    unless %w[$BROWSER open start].any? {|b| system "#{b} #{man_html}" }
-      # no luck; direct user to project website
-      puts "See #{Rumai::WEBSITE}"
-    end
-  end
+  system 'man', '-M', File.join(Rumai::INSTDIR, 'man'), 'rumai' or
+  warn "Could not display the help manual.\nSee #{Rumai::WEBSITE} instead."
   exit
 elsif ARGV.delete('-v') or ARGV.delete('--version')
   puts Rumai::VERSION
   exit
 end
 
-# start IRB session
 require 'rumai/irb'
 require 'irb/completion'
-
 IRB.start_session Rumai