3e74d705e2
* Correct arg typo in mv_within_target_or_die(). * Add new path-prefixing entrypoints to fopen(), collect(), and do mounts. * Use the above. MI code is now clean of explicit references to /mnt. * Lint: add `const' to collect()'s pathname arg. include <stdio.h> in factor.c, now that defs.h uses FILE*.