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/udev/udev.h b/src/udev/udev.h
index d17fc8c1ea..1f9c8120c0 100644
--- a/src/udev/udev.h
+++ b/src/udev/udev.h
@@ -18,16 +18,17 @@
 
 #pragma once
 
-#include <sys/types.h>
 #include <sys/param.h>
+#include <sys/types.h>
 
-#include "macro.h"
-#include "sd-netlink.h"
 #include "libudev.h"
-#include "libudev-private.h"
-#include "util.h"
+#include "sd-netlink.h"
+
 #include "label.h"
+#include "libudev-private.h"
+#include "macro.h"
 #include "strv.h"
+#include "util.h"
 
 struct udev_event {
         struct udev *udev;