bin/ebooks in twitter_ebooks-2.2.4 vs bin/ebooks in twitter_ebooks-2.2.5

@@ -1,6 +1,7 @@
 #!/usr/bin/env ruby
+# encoding: utf-8
 
 require 'twitter_ebooks'
 
 $debug = true
 
@@ -172,11 +173,11 @@
     end
   end
 
   def self.command(args)
     usage = <<STR
-Usage: 
+Usage:
      ebooks new <reponame>
      ebooks consume <corpus_path> [corpus_path2] [...]
      ebooks gen <model_path> [input]
      ebooks score <model_path> <input>
      ebooks archive <@user> <outpath>
@@ -195,9 +196,12 @@
     when "gen" then gen(args[1], args[2..-1].join(' '))
     when "score" then score(args[1], args[2..-1].join(' '))
     when "archive" then archive(args[1], args[2])
     when "tweet" then tweet(args[1], args[2])
     when "jsonify" then jsonify(args[1..-1])
+    else
+      log usage
+      exit 1
     end
   end
 end
 
 Ebooks.command(ARGV)