jamtur01/dockerbook-code — pull request #1 by eshamow (2014-08-27 23:03:47+00:00)
Title: Replace backtick notation for %x() for shell commands

Ruby 1.9.3-p484, which is the default for Ubuntu 14.04, has some trouble
with the backtick expansion when using the jamtur01/fetcher container.
Switching for %x() is slightly cleaner and seems to resolve the problem.