For some reason, the Cygwin Tcl's `exec' command has trouble running
scripts. Fix this by using the C `git' wrapper. Other GIT programs run
by gitk are written in C already, so we don't need to incur a
performance hit of going via the wrapper (which I'll bet isn't pretty
under Cygwin).
Signed-off-by: Mark Wooding <mdw@distorted.org.uk> Acked-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Paul Mackerras <paulus@samba.org>