8134722306
As we frequently need to execute a Git subcommand and obtain its returned output we are making heavy use of [exec git foo] to run foo. As I'm concerned about possibly needing to carry environment data through a shell on Cygwin for at least some subcommands, I'm migrating all current calls to a new git proc. This actually makes the code look cleaner too, as we aren't saying 'exec git' everywhere. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>