Installing system fails if you have a user called hpcc-dev

The code

groupNum=`grep -w ${user} /etc/passwd  | cut -d ':' -f 4`
group=`grep -w ${groupNum} /etc/group | cut -d ':' -f 1`

in install-init.in goes wrong of the first grep expression matches more than one user - in my case I had a user hpcc-dev on the box.

probably needs to say grep -f ^${user}: