Fix bug from #156 and include commit from #159

[lucc]

This should now work with the heirloom shell again. (Please check if possible.)

But I just noticed another error with the heirloom shell: it doesn't support command -v something. We might need to address this later if we really want to support this shell as a bootstraping shell.

references: #156 #159

[rkitover]

The reason for that is for original bourne there was a /bin/command on the system, but in newer systems it is gone. It still exists on Solaris and presumably other systems that use original bourne.

[lucc]

Ok so if I want to test something with the heirloom shell I just add a custom dir to $PATH where I keep this file named command:

#!/bin/bash
builtin command "$@"