git-gui: fix detection of Cygwin
commit577c7e8fc663bc0e31b10e8691f03c3361dedc51
authorPat Thoyts <patthoyts@users.sourceforge.net>
Sun, 2 Oct 2016 10:51:29 +0000 (2 11:51 +0100)
committerPat Thoyts <patthoyts@users.sourceforge.net>
Mon, 3 Oct 2016 10:03:29 +0000 (3 11:03 +0100)
treeb6c4cc6acf8322c2eb818723a5d28e9b18f68e63
parent82b2cab317863eb6322386157f73b0e021b72ba2
git-gui: fix detection of Cygwin

MSys2 might *look* like Cygwin, but it is *not* Cygwin... Unless it
is run with `MSYSTEM=MSYS`, that is.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>
git-gui.sh