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, 3 insertions, 2 deletions

diff --git a/src/test/test-arphrd-list.c b/src/test/test-arphrd-list.c
index d7c8eaa4a9..f3989ad201 100644
--- a/src/test/test-arphrd-list.c
+++ b/src/test/test-arphrd-list.c
@@ -21,13 +21,14 @@
 #include <string.h>
 
 #include "macro.h"
+#include "string-util.h"
 #include "util.h"
 
 static const struct arphrd_name* lookup_arphrd(register const char *str, register unsigned int len);
 
+#include "arphrd-from-name.h"
 #include "arphrd-list.h"
 #include "arphrd-to-name.h"
-#include "arphrd-from-name.h"
 
 int main(int argc, const char *argv[]) {
 
@@ -45,4 +46,4 @@ int main(int argc, const char *argv[]) {
         assert_se(arphrd_from_name("huddlduddl") == 0);
 
         return 0;
-}
\ No newline at end of file
+}