Don't link to line numbers in GitHub
ProTip: Hit the <i></i>y<i></i> key on any GitHub page with source code.<p>It'll instantly expand the URL to its canonical form, e.g.<p><a href="https://github.com/sass/libsass/blob/master/parser.cpp#L29-L36" rel="nofollow">https://github.com/sass/libsass/blob/master/parser.cpp#L29-L...</a><p>to<p><a href="https://github.com/sass/libsass/blob/fca1f75a14fe5336c7b1a4b38c69bda7fece714f/parser.cpp#L29-L36" rel="nofollow">https://github.com/sass/libsass/blob/fca1f75a14fe5336c7b1a4b...</a><p>which stays valid indefinitely (unless the commit is deleted from the repo).<p>P.S. Hit the <i></i>?<i></i> key for more keyboard awesomeness. :)