Revert "qa/121: #!/usr/bin/sh is evil, and wrong"
Revert "qa/121: #!/usr/bin/sh is evil, and wrong"

This reverts commit c48994d85c3705c0b59807e5ac4b9db9cea8ca8d.

Nathan has done the same thing in his tree, so undo mine to reduce
the chance of a merge conflict.

adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp