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, 11 insertions, 10 deletions

diff --git a/src/libsystemd-network/sd-dhcp-client.c b/src/libsystemd-network/sd-dhcp-client.c
index 28e012afca..a6d6a176e4 100644
--- a/src/libsystemd-network/sd-dhcp-client.c
+++ b/src/libsystemd-network/sd-dhcp-client.c
@@ -17,24 +17,25 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include <stdlib.h>
 #include <errno.h>
-#include <string.h>
-#include <stdio.h>
 #include <net/ethernet.h>
 #include <net/if_arp.h>
-#include <linux/if_infiniband.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 #include <sys/ioctl.h>
+#include <linux/if_infiniband.h>
 
-#include "util.h"
-#include "random-util.h"
-#include "async.h"
+#include "sd-dhcp-client.h"
 
-#include "dhcp-protocol.h"
+#include "async.h"
+#include "dhcp-identifier.h"
 #include "dhcp-internal.h"
 #include "dhcp-lease-internal.h"
-#include "dhcp-identifier.h"
-#include "sd-dhcp-client.h"
+#include "dhcp-protocol.h"
+#include "random-util.h"
+#include "string-util.h"
+#include "util.h"
 
 #define MAX_CLIENT_ID_LEN (sizeof(uint32_t) + MAX_DUID_LEN)  /* Arbitrary limit */
 #define MAX_MAC_ADDR_LEN CONST_MAX(INFINIBAND_ALEN, ETH_ALEN)