less/less.js — pull request #1718 by MSamman (2013-12-06 08:57:29+00:00)
Title: FIXES ISSUE #1453: let ModifyVar change numerical variables

Adding a ```toString()``` call within ```serializeVars()``` fixes this issue #1453. If the variable to be modified is numerical, this leaves the passed in value as a number, but converts to string before calling slice.