Tweak msys_p2w to retain ":/" and "::"
This commits brings a tweaked msys-1.0.dll in which
MSYS's path convertsion function msys_p2w is tailored
to retain some git specific arguments. ":/message"
(see t7201-co.sh "checkout to detach HEAD with :/message")
"::" (see t5511-refspec.sh) now work.
msys-1.0.dll was built as desribed on
http://www.mingw.org/MinGWiki/index.php/Build%20MSYS.
msys_p2w was modified with
0001-Tweak-msys_p2w-for-msysgit.patch included in this commit.
Signed-off-by: Steffen Prohaska <prohaska@zib.de>