Trivial git script fixups

Fix permissions, and add trivial "reset" and "add" scripts.

The "reset" script just resets the index back to head, while the "add"
script is just a crutch for people used to do "cvs add".

Makefile

@@ -23,7 +23,8 @@ INSTALL=install
 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-log-script git-shortlog git-cvsimport-script git-diff-script
+	git-log-script git-shortlog git-cvsimport-script git-diff-script \
+	git-reset-script git-add-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-add-script

@@ -0,0 +1,2 @@
+#!/bin/sh
+git-update-cache --add "$@"

git-diff-script

@@ -3,13 +3,13 @@ rev=($(git-rev-parse --revs-only "$@"))
 flags=($(git-rev-parse --no-revs "$@"))
 case "${#rev[*]}" in
 0)
-	git-diff-files -p "$@";;
+	git-diff-files -p -C "$@";;
 1)
-	git-diff-cache -p "$@";;
+	git-diff-cache -p -C "$@";;
 2)
 	begin=$(echo "${rev[1]}" | tr -d '^')
 	end="${rev[0]}"
-	git-diff-tree -p $flags $begin $end;;
+	git-diff-tree -p -C $flags $begin $end;;
 *)
 	echo "I don't understand"
 	exit 1;;

git-reset-script

@@ -0,0 +1,3 @@
+#!/bin/sh
+git-read-tree --reset HEAD
+git-update-cache --refresh