In particular, it fixes the following (typical for cygwin) problem:
$ git-update-index --chmod=-x ../wrapper/Jamfile
fatal: git-update-index: cannot chmod -x '../wrapper/Jamfile'
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
---
builtin-update-index.c | 8 ++++++--
1 files changed, 6 insertions(+), 2 deletions(-)