Merge branch 'ma/builtin-unleak'

Many variables that points at a region of memory that will live
throughout the life of the program have been marked with UNLEAK
marker to help the leak checkers concentrate on real leaks..

* ma/builtin-unleak:
  builtin/: add UNLEAKs

diff --cc builtin/checkout.c
Simple merge

diff --cc builtin/diff-index.c
Simple merge

diff --cc builtin/diff.c
Simple merge

diff --cc builtin/name-rev.c
Simple merge

diff --cc builtin/tag.c
Simple merge