shared: add process-util.[ch]

src/machine/machine-dbus.c

@@ -43,6 +43,7 @@
 #include "machine.h"
 #include "machine-dbus.h"
 #include "formats-util.h"
+#include "process-util.h"
 
 static int property_get_id(
                 sd_bus *bus,

src/machine/machinectl.c

@@ -52,6 +52,7 @@
 #include "copy.h"
 #include "verbs.h"
 #include "import-util.h"
+#include "process-util.h"
 
 static char **arg_property = NULL;
 static bool arg_all = false;