bin/shiba in shiba-0.2.3 vs bin/shiba in shiba-0.3.0

@@ -4,11 +4,11 @@
 
 APP = File.basename(__FILE__)
 
 commands = {
     "explain" => "Generate a report from logged SQL queries",
-    "check"   => "Check staged files for query problems",
+    "review"   => "Review changed files for query problems",
 }
 
 global = OptionParser.new do |opts|
   opts.banner = "usage: #{APP} [--help] <command> [<args>]"
   opts.separator ""
@@ -29,11 +29,11 @@
   puts global.to_s
   exit
 end
 
 if !commands.key?(command)
-    puts "#{APP}: '#{command}' is not a '#{APP}' command. See '#{APP} --help'."
-    exit 1
+  puts "#{APP}: '#{command}' is not a '#{APP}' command. See '#{APP} --help'."
+  exit 2
 end
 
 path = File.join(File.dirname(__FILE__), command)
 
 Kernel.exec(path, *ARGV)
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