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, 7 insertions, 6 deletions

diff --git a/src/core/dbus-service.c b/src/core/dbus-service.c
index fe2a4a3b37..0062f1f7f0 100644
--- a/src/core/dbus-service.c
+++ b/src/core/dbus-service.c
@@ -20,15 +20,16 @@
 ***/
 
 #include "async.h"
-#include "strv.h"
-#include "path-util.h"
-#include "unit.h"
-#include "service.h"
+#include "bus-util.h"
+#include "dbus-cgroup.h"
 #include "dbus-execute.h"
 #include "dbus-kill.h"
-#include "dbus-cgroup.h"
+#include "path-util.h"
+#include "service.h"
+#include "string-util.h"
+#include "strv.h"
+#include "unit.h"
 #include "dbus-service.h"
-#include "bus-util.h"
 
 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, service_type, ServiceType);
 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_result, service_result, ServiceResult);