Add a run script.

ruby/Gemfile.lock

 GIT
   remote: https://github.com/lyda/mmap.git
-  revision: 379bdbd2c848e96d8f89e954663b8c26529b8919
+  revision: 397013dd15a4e5f3f2cd9ddbad39850ec9f61d33
   branch: non-global-version
   specs:
-    mmap (0.2.7)
+    mmap (0.2.7a)
 
 GEM
   remote: https://rubygems.org/

ruby/run.sh

+#! /bin/sh
+
+test -f Gemfile.lock && rm Gemfile.lock
+bundle install
+bundle exec ruby test.rb