tst_test: Print used temporary dir and its filesystem
It helps debugging to know used filesystem (and in case of
TST_ALL_FILESYSTEMS=1 the underlying filesystem). This follows
5cabf2bea7 change in C API, using 'stat' which should work also on
busybox.
Missing 'stat' binary (or busybox symlink) does not break test (just the
output is mangled), thus 'stat' presence is not tested/required.
Similarly to previous commit this helps reviewing tests posted on ML or
github issue (reporters sometimes don't include this info). Use
'uname -a' (print more info than what is printed in C API).
Missing 'uname' binary (or busybox symlink) does not break test (just
the output is mangled), thus 'uname' presence is not tested/required.
This helps reviewing tests posted on ML or github issue
(reporters sometimes don't include this info).
Using interesting parts from struct utsname to get used linux
distribution, kernel version, release and architecture (less info than
when running 'uname -a', but other info is not much useful).
