MSysGit compiles git binaries as native Windows executables,
so they cannot be killed unless a special flag is specified.
This flag is implemented by the Cygwin version of kill,
which is also included in MSysGit.
Signed-off-by: Alexander Gavrilov <angavrilov@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>