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, 4 insertions, 4 deletions

diff --git a/src/libsystemd/sd-bus/test-bus-kernel.c b/src/libsystemd/sd-bus/test-bus-kernel.c
index 6506eaab2e..436bc017a4 100644
--- a/src/libsystemd/sd-bus/test-bus-kernel.c
+++ b/src/libsystemd/sd-bus/test-bus-kernel.c
@@ -21,13 +21,13 @@
 
 #include <fcntl.h>
 
-#include "util.h"
-#include "log.h"
-
 #include "sd-bus.h"
+
+#include "bus-dump.h"
 #include "bus-kernel.h"
 #include "bus-util.h"
-#include "bus-dump.h"
+#include "log.h"
+#include "util.h"
 
 int main(int argc, char *argv[]) {
         _cleanup_close_ int bus_ref = -1;