packed objects: minor cleanup

diff --git a/git-branch.sh b/git-branch.sh
index 5306b2719ffbedfa077f4d5489ab46448ef5c186..6ac961e6d18b8419abdaa5ed57a55ef58f7bc0fb 100755 (executable)
--- a/git-branch.sh
+++ b/git-branch.sh
@@ -1,21 +1,12 @@
 #!/bin/sh
 
-GIT_DIR=`git-rev-parse --git-dir` || exit $?
-
-die () {
-    echo >&2 "$*"
-    exit 1
-}
-
-usage () {
-    echo >&2 "usage: $(basename $0)"' [-d <branch>] | [[-f] <branch> [start-point]]
-
-If no arguments, show available branches and mark current branch with a star.
+USAGE='[(-d | -D) <branchname>] | [[-f] <branchname> [<start-point>]]'
+LONG_USAGE='If no arguments, show available branches and mark current branch with a star.
 If one argument, create a new branch <branchname> based off of current HEAD.
-If two arguments, create a new branch <branchname> based off of <start-point>.
-'
-    exit 1
-}
+If two arguments, create a new branch <branchname> based off of <start-point>.'
+
+SUBDIRECTORY_OK='Yes'
+. git-sh-setup
 
 headref=$(git-symbolic-ref HEAD | sed -e 's|^refs/heads/||')
 
@@ -41,11 +32,11 @@ delete_branch () {
            case " $mbs " in
            *' '$branch' '*)
                # the merge base of branch and HEAD contains branch --
-               # which means that the HEAD contains everything in the HEAD.
+               # which means that the HEAD contains everything in both.
                ;;
            *)
                echo >&2 "The branch '$branch_name' is not a strict subset of your current HEAD.
-    If you are sure you want to delete it, run 'git branch -D $branch_name'."
+If you are sure you want to delete it, run 'git branch -D $branch_name'."
                exit 1
                ;;
            esac