Add "git" and "git-log-script" helper scripts.

The "git" script is just shorthand: "git xyz <args>" will just execute
"git-xyz-script <args>", which is useful for people used to the CVS
naming convention. So "git log" will run the new git-log-script, which
is just a wrapper around the new pretty-printing git-rev-list.

Cheesy.

Makefile

@@ -20,9 +20,10 @@ CC=gcc
 AR=ar
 INSTALL=install
 
-SCRIPTS=git-apply-patch-script git-merge-one-file-script git-prune-script \
+SCRIPTS=git git-apply-patch-script git-merge-one-file-script git-prune-script \
 	git-pull-script git-tag-script git-resolve-script git-whatchanged \
-	git-deltafy-script git-fetch-script git-status-script git-commit-script
+	git-deltafy-script git-fetch-script git-status-script git-commit-script \
+	git-log-script
 
 PROG=   git-update-cache git-diff-files git-init-db git-write-tree \
 	git-read-tree git-commit-tree git-cat-file git-fsck-cache \

git

@@ -0,0 +1,4 @@
+#!/bin/sh
+cmd="git-$1-script"
+shift
+exec $cmd "$@"

git-log-script

@@ -0,0 +1,2 @@
+#!/bin/sh
+git-rev-list --pretty HEAD | LESS=-S ${PAGER:-less}