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.

1 files changed, 6 insertions, 6 deletions

diff --git a/src/libsystemd-network/test-ipv4ll-manual.c b/src/libsystemd-network/test-ipv4ll-manual.c
index dd2e44e7a3..08421c3575 100644
--- a/src/libsystemd-network/test-ipv4ll-manual.c
+++ b/src/libsystemd-network/test-ipv4ll-manual.c
@@ -19,21 +19,21 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include <stdlib.h>
 #include <errno.h>
+#include <net/if.h>
+#include <stdlib.h>
 #include <unistd.h>
-
 #include <linux/veth.h>
-#include <net/if.h>
 
 #include "sd-event.h"
-#include "sd-netlink.h"
 #include "sd-ipv4ll.h"
+#include "sd-netlink.h"
 
-#include "util.h"
 #include "event-util.h"
-#include "netlink-util.h"
 #include "in-addr-util.h"
+#include "netlink-util.h"
+#include "string-util.h"
+#include "util.h"
 
 static void ll_handler(sd_ipv4ll *ll, int event, void *userdata) {
         _cleanup_free_ char *address = NULL;