FreeRDP/FreeRDP — pull request #1686 by zhangzl2013 (2014-02-10 08:53:56+00:00)
Title: wfreerdp: fix gdi polyline mistake.

Points in POLYLINE_ORDER are delta-encoded points.
ref: [MS-RDPEGDI] 2.2.2.3.1.1.1.4