gruntjs/grunt-contrib-less — pull request #99 by iki (2013-11-14 20:38:32+00:00)
Title: Replace {} in sourceMapFilename with CSS output file.

Token `{}` in given filename is replaced with CSS output filename,
which is useful namely when generating [multiple files](http://gruntjs.com/configuring-tasks#files-object-format) in single task.