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, 5 deletions

diff --git a/src/login/logind.c b/src/login/logind.c
index 8ac2aceb9b..6ce7e1fd78 100644
--- a/src/login/logind.c
+++ b/src/login/logind.c
@@ -20,19 +20,20 @@
 ***/
 
 #include <errno.h>
-#include <libudev.h>
 #include <fcntl.h>
 #include <string.h>
 #include <unistd.h>
 
+#include "libudev.h"
 #include "sd-daemon.h"
-#include "strv.h"
-#include "conf-parser.h"
-#include "bus-util.h"
+
 #include "bus-error.h"
-#include "udev-util.h"
+#include "bus-util.h"
+#include "conf-parser.h"
 #include "formats-util.h"
 #include "signal-util.h"
+#include "strv.h"
+#include "udev-util.h"
 #include "logind.h"
 
 static void manager_free(Manager *m);