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-proxy.c b/src/libsystemd/sd-bus/test-bus-proxy.c
index aef768dc18..ae04ff5b0d 100644
--- a/src/libsystemd/sd-bus/test-bus-proxy.c
+++ b/src/libsystemd/sd-bus/test-bus-proxy.c
@@ -23,13 +23,13 @@
 #include <fcntl.h>
 #include <stdlib.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"
 
 typedef struct {
         const char *sender;