testprogs: Correctly expand shell parameters

testprogs: Correctly expand shell parameters

The old behaviour is:

  for var in $*
  do
    echo "$var"
  done

And you get this:

$ sh test.sh 1 2 '3 4'
1
2
3
4

Changing it to:

  for var in "$@"
  do
    echo "$var"
  done

will correctly expand to:

$ sh test.sh 1 2 '3 4'
1
2
3 4

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Wed Mar 15 05:26:17 CET 2017 on sn-devel-144