mozilla/pdf.js — pull request #5447 by araghava (2014-10-26 21:30:39+00:00)
Title: [issue 5440] fix rtl direction bug for full language codes

- fixes issue #5440
- full language codes are represented as "ab-cd", whereas short ones are "ab"
- this code change only uses "ab" to determine the RTL/LTR direction