The perldiag(1) has following to say about this:
"Can't do inplace edit without backup"
(F) You're on a system such as MS-DOS that gets confused if
you try reading from a deleted (but still opened) file. You
have to say -i.bak, or some such.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We used to mark hooks we ship as samples by making them unexecutable, but
some filesystems cannot tell what is executable and what is not.
This makes it much more explicit. The hooks are suffixed with .sample
(but now are made executable), so enabling it is still one step operation
(instead of "chmod +x $hook", you would do "mv $hook.sample $hook") but
now they won't get accidentally enabled on systems without executable bit.
Signed-off-by: Junio C Hamano <gitster@pobox.com>