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, 10 insertions, 9 deletions

diff --git a/src/libsystemd-network/sd-dhcp-lease.c b/src/libsystemd-network/sd-dhcp-lease.c
index df3d8e6e3c..bc01b5b535 100644
--- a/src/libsystemd-network/sd-dhcp-lease.c
+++ b/src/libsystemd-network/sd-dhcp-lease.c
@@ -18,21 +18,22 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include <stdlib.h>
+#include <arpa/inet.h>
 #include <errno.h>
-#include <string.h>
 #include <stdio.h>
-#include <arpa/inet.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "sd-dhcp-lease.h"
 
+#include "dhcp-lease-internal.h"
+#include "dhcp-protocol.h"
+#include "dns-domain.h"
 #include "fileio.h"
-#include "unaligned.h"
-#include "in-addr-util.h"
 #include "hostname-util.h"
-#include "dns-domain.h"
+#include "in-addr-util.h"
 #include "network-internal.h"
-#include "dhcp-protocol.h"
-#include "dhcp-lease-internal.h"
-#include "sd-dhcp-lease.h"
+#include "unaligned.h"
 
 int sd_dhcp_lease_get_address(sd_dhcp_lease *lease, struct in_addr *addr) {
         assert_return(lease, -EINVAL);