tree-wide: remove Emacs lines from all files This should be handled fine now by .dir-locals.el, so need to carry that stuff in every file.

udev: add emacs header line Otherwise emacs wants to use 2-space indentation and other attrocities.

util-lib: split our string related calls from util.[ch] into its own file string-util.[ch] There are more than enough calls doing string manipulations to deserve its own files, hence do something about it. This patch also sorts the #include blocks of all files that needed to be updated, according to the sorting suggestions from CODING_STYLE. Since pretty much every file needs our string manipulation functions this effectively means that most files have sorted #include blocks now. Also touches a few unrelated include files.

remove unused includes This patch removes includes that are not used. The removals were found with include-what-you-use which checks if any of the symbols from a header is in use.

include <poll.h> instead of <sys/poll.h> include-what-you-use automatically does this and it makes finding unnecessary harder to spot. The only content of poll.h is a include of sys/poll.h so should be harmless.

udevadm,..: make --help output of udev tools more like the output of the various other tools

udev: never bypass our own logging framework and call vsyslog() directly from udev tools

udev: place opening { at the same line as the function declaration

udevadm,scsi_id: add short options to help strings and to the man page Also clean things up a bit here and there.

udev: move string copy functions to shared/

use the same email address everywhere

udev: add btrfs support All "btrfs" file systems will be registered with the kernel when they show up. Incomplete multi-device volumes will set SYSTEMD_READY=0, to prevent access until the volume is complete and fully registered.

udev: use startswith() and streq()

udev: remove configuration options for /dev, /sys, /run directories

udev: switch to systemd logging functions

move imported udev into place