test-json: use fabs
udev: net_setup - fix warning
shared: path-util - memory leak
shared: strv - add strv_clear()

This frees the elements of the strv without freeing the strv itself.
path: follow symbolic link for parent path

[zj: When we lstat the target path, symlinks above the last component
     will be followed by both stat and lstat. So when we look at the
     parent, we should follow symlinks.]
hwdb: add Lenovo 3000 N200 special key

https://bugs.freedesktop.org/show_bug.cgi?id=87377
nspawn: fix invocation of the raw clone() system call on s390 and cris

Since the order of the first and second arguments of the raw clone() system
call is reversed on s390 and cris it needs to be invoked differently.