There is no need to break out the "buf" and "len" members into
separate temporary variables. Rename path_buf to path and use
path.buf and path.len directly. This makes it easier to reason about
the data flow in the function.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>