k_tree_diff: Remove dependency on output order from find(1) command

The output of "find | md5sum" command under one dir is often different from under its
duplicated dir on Red hat OS, which will cause STRESS-HWPOISON-SOFT test fail, but
it isn't found on Ubuntu. Change "find | md5sum" command to "find | sort | md5sum"
command in k_tree_diff() can get expected result in both OS.

Signed-off-by: Jin Wen <wen.jin@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
1 file changed