Replaced fail() with assert*()
Replaced fail() with assert*()

stfp/git-lint,TimeIncOSS/git-lint,sk-/git-lint,stfp/git-lint,sk-/git-lint,sk-/git-lint,TimeIncOSS/git-lint,stfp/git-lint,stfp/git-lint,TimeIncOSS/git-lint,sk-/git-lint,TimeIncOSS/git-lint,sk-/git-lint,stfp/git-lint,TimeIncOSS/git-lint,sk-/git-lint,sk-/git-lint,sk-/git-lint,TimeIncOSS/git-lint,stfp/git-lint,TimeIncOSS/git-lint,sk-/git-lint,stfp/git-lint