Among others, here are the highlights:
* move variable declaration closer to the place it is set and used,
if possible,
* uniquify and simplify coding style a bit, which includes removing
unnecessary '()'.
* check type only if $hash was defined, as otherwise from the way
git_get_hash_by_path() is called (and works), we know that it is
a blob,
* use modern calling convention for git-blame,
* remove unused variable,
* don't use implicit variables ($_),
* add some comments
Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Acked-by: Luben Tuikov <ltuikov@yahoo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>