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, 10 insertions, 9 deletions

diff --git a/src/libsystemd/sd-bus/bus-message.c b/src/libsystemd/sd-bus/bus-message.c
index 72e2b9f785..0e35b3a358 100644
--- a/src/libsystemd/sd-bus/bus-message.c
+++ b/src/libsystemd/sd-bus/bus-message.c
@@ -23,19 +23,20 @@
 #include <fcntl.h>
 #include <sys/mman.h>
 
-#include "util.h"
-#include "utf8.h"
-#include "strv.h"
-#include "time-util.h"
-#include "memfd-util.h"
-
 #include "sd-bus.h"
-#include "bus-message.h"
+
+#include "bus-gvariant.h"
 #include "bus-internal.h"
-#include "bus-type.h"
 #include "bus-signature.h"
-#include "bus-gvariant.h"
+#include "bus-type.h"
 #include "bus-util.h"
+#include "memfd-util.h"
+#include "string-util.h"
+#include "strv.h"
+#include "time-util.h"
+#include "utf8.h"
+#include "util.h"
+#include "bus-message.h"
 
 static int message_append_basic(sd_bus_message *m, char type, const void *p, const void **stored);