[Patch 0/5] make more commands built-in

Ok, so since I was working on this yesterday, I decided to just continue until I was done with all the trivial files.

This series makes five more commands built-in: 'merge-index', 'mktag', 'unpack-file', 'pack-redundant' and 'index-pack'. It further shrinks my git install footprint by about 20%:

	[torvalds@nehalem git]$ du -s /home/torvalds/libexec/git-core
	21424	/home/torvalds/libexec/git-core (before)
	16920	/home/torvalds/libexec/git-core (after)

and if we didn't default to having debug info enabled, it would look almost acceptable:

	[torvalds@nehalem git]$ du -s /home/torvalds/libexec/git-core
	5728	/home/torvalds/libexec/git-core (with "-g" removed)
	5108	/home/torvalds/libexec/git-core (with -Os and no debugging)

There still remains a few big git commands after this, but this takes care of most of the core ones.

All of these patches are trivial, the only one that has _any_ changes apart from the obvious builtin conversion is 'pack-redundant' which required some of the pack creation interfaces to now take 'const' index pathnames etc.

But as you can see, it removes more lines than it adds, and considering that yesterday the 'du' reported ~40MB of disk space for the git install, the shrinking certainly matters (of course, I suspect most distros wouldn't ship with debug info, so for most people it's about a few MB rather than a few tens of MB, but still).

		Linus
---
Linus Torvalds (5):
  make "merge-index" a built-in
  make "mktag" a built-in
  make "git unpack-file" a built-in
  make "git pack-redundant" a built-in
  make "index-pack" a built-in

 Makefile                                     |   10 +++++-----
 index-pack.c => builtin-index-pack.c         |   16 +++++++---------
 merge-index.c => builtin-merge-index.c       |    7 ++-----
 mktag.c => builtin-mktag.c                   |    6 +-----
 builtin-pack-objects.c                       |    5 +++--
 pack-redundant.c => builtin-pack-redundant.c |    8 ++------
 unpack-file.c => builtin-unpack-file.c       |    5 +----
 builtin.h                                    |    5 +++++
 git.c                                        |    5 +++++
 pack-write.c                                 |    4 ++--
 pack.h                                       |    2 +-
 11 files changed, 34 insertions(+), 39 deletions(-)
 rename index-pack.c => builtin-index-pack.c (98%)
 rename merge-index.c => builtin-merge-index.c (94%)
 rename mktag.c => builtin-mktag.c (98%)
 rename pack-redundant.c => builtin-pack-redundant.c (99%)
 rename unpack-file.c => builtin-unpack-file.c (89%)