Make `./run-foodcritic` exe compatible with ruby 1.9.3
Make `./run-foodcritic` exe compatible with ruby 1.9.3

ljharb/travis-cookbooks,dracos/travis-cookbooks,spurti-chopra/travis-cookbooks,gavioto/travis-cookbooks,gavioto/travis-cookbooks,dracos/travis-cookbooks,gavioto/travis-cookbooks,travis-ci/travis-cookbooks,spurti-chopra/travis-cookbooks,spurti-chopra/travis-cookbooks,travis-ci/travis-cookbooks,ljharb/travis-cookbooks,dracos/travis-cookbooks,dracos/travis-cookbooks,travis-ci/travis-cookbooks,ljharb/travis-cookbooks,gavioto/travis-cookbooks