Kind of a stupid question, but I think it have its place on SO.
I am seeing a lot of commit logs on opensource projects that looks like this;
feat(something): Some description here
fix(something): Some other description
I found some of the repeating pattern @ https://docs.google.com/document/d/1QrDFcIiPjSLDn3EL15IJygNPiHORgU1_OOAqWjiDU5Y and there is a plugin to grunt called grunt-conventional-changelog that uses this pattern.
Looks more or less like an AngularJS phenomen. Angular have been my main focus lately, so thats probably how I have been stumbling on this the last weeks..