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/libsystemd/sd-bus/bus-error.c b/src/libsystemd/sd-bus/bus-error.c
index 64a5a972ae..831ceb86b9 100644
--- a/src/libsystemd/sd-bus/bus-error.c
+++ b/src/libsystemd/sd-bus/bus-error.c
@@ -20,16 +20,17 @@
 ***/
 
 #include <errno.h>
-#include <stdlib.h>
 #include <stdarg.h>
 #include <stdbool.h>
-#include <string.h>
 #include <stdio.h>
-
-#include "util.h"
-#include "errno-list.h"
+#include <stdlib.h>
+#include <string.h>
 
 #include "sd-bus.h"
+
+#include "errno-list.h"
+#include "string-util.h"
+#include "util.h"
 #include "bus-error.h"
 
 BUS_ERROR_MAP_ELF_REGISTER const sd_bus_error_map bus_standard_errors[] = {