Script commit que nao gera merge commit

gistfile1.txt

#!/bin/sh -x
CURRENT=`git branch | grep "*" | awk '{print $2}'`
if [ CURRENT = "master"]; then
	git commit -a -m "[#${CURRENT}] $1"
else
	git stash
	sink
	git stash apply
	git commit -a -m "[#${CURRENT}] $1"
	git stash clear
fi