add support EMPTY (for none suffix files ) ,For Windows, Need ins…#116

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cpiger wants to merge 1 commit intoexvim:masterfrom

Commits on May 25, 2016

add support __EMPTY__ (for none suffix files ) ,For Windows, Need install Gnuwin32 grep file command,you can download from here: http://gnuwin32.sourceforge.net/packages.html
cpiger
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