save bugs
Revert "Add completion_command support so something can be run at the end of the fs scan"

This reverts commit 57caa54ec2f763bf798305c9164319dfe827835c.
Revert "Set RBH_PATH_MAX to system PATH_MAX"

This reverts commit f394d009d10487dabc94dfdcf633d69a1b682159.