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, 4 deletions

diff --git a/src/core/dbus-unit.c b/src/core/dbus-unit.c
index 52daf11610..b2b9eceeb3 100644
--- a/src/core/dbus-unit.c
+++ b/src/core/dbus-unit.c
@@ -20,13 +20,15 @@
 ***/
 
 #include "sd-bus.h"
+
+#include "bus-common-errors.h"
+#include "cgroup-util.h"
+#include "dbus.h"
 #include "log.h"
 #include "selinux-access.h"
-#include "cgroup-util.h"
-#include "strv.h"
-#include "bus-common-errors.h"
 #include "special.h"
-#include "dbus.h"
+#include "string-util.h"
+#include "strv.h"
 #include "dbus-unit.h"
 
 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_load_state, unit_load_state, UnitLoadState);