/bin/bash is a Linuxism. Other operating systems install bash to
different paths. Use /usr/bin/env in shebangs to find bash.
Signed-off-by: Alan Somers <asomers@gmail.com>
Capture Alexandre's script for reproducing #1774 here for posterity, until
we write a properly harnessed test for this. Currently, workunits can't
mount/unmount, and we don't have a way to make ceph-fuse drop it's cache.
Signed-off-by: Sage Weil <sage@newdream.net>