Re: [PATCH] git-init: don't base core.filemode on the ability to chmod.

> At least on Linux the vfat file system honors chmod calls but does not
> store them permanently (as there is no on-disk format for it).
> So the filemode test which tries to chmod a file thinks that the file
> system does support file modes.  This will result in problems when the
> file system gets mounted for the next time and all the executable bits
> are back.
> 
> A more reliable test for file systems without filemode support is to
> simply check if new files are created with the executable bit set.