[-] Technical - Clean a .gitignore comment

Author: arnaudbesnier

.gitignore

@@ -10,7 +10,7 @@ pids
 # Directory for instrumented libs generated by jscoverage/JSCover
 lib-cov
 
-# Coverage directory used by tools like istanbul
+# Coverage directory
 coverage
 
 # Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)