Added git-track, thanks to doener on #git.

Author: jwiegley

git-retrack

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+# Based on an alias written by doener on #git.
+
+# usage: git retrack URL BRANCH
+
+branch=$(git rev-parse --symbolic-full-name HEAD | sed 's/refs\/heads\///')
+
+git config branch.$branch.remote "$1"
+git config branch.$branch.merge "refs/heads/${2:-$branch}"