GLOBAL 6.2.7 DOS/Win patch

[Jason Hood]

Here's[1] a patch for 6.2.7 to make --literal work with CRLF files
(where the value returned won't match the value requested).  For
Windows, it just uses the Windows file mapping functions; for DOS,
it reads as binary (opening with O_BINARY, defined as 0 if necessary).
I've also continued searching if a file couldn't be opened/stat'ed.

[1]http://global.adoxa.cjb.net/glo627a.txt

-- 
Jason.