fix of some problems with user modification with skeleton informations under FreeBSD (#34694)

* respect skeleton argument in usermod mode for FreeBSD

* use FreeBSD's own (more sophisticated) home creation function rather than ansible's create_home(), which does not handle skeleton files correctly for FreeBSD

lib/ansible/modules/system/user.py

@@ -848,12 +848,16 @@ class FreeBsdUser(User):
             cmd.append('-c')
             cmd.append(self.comment)
 
-        if self.home is not None and info[5] != self.home:
-            if self.move_home:
+        if self.home is not None:
+            if (info[5] != self.home and self.move_home) or (not os.path.exists(self.home) and self.createhome):
                 cmd.append('-m')
             cmd.append('-d')
             cmd.append(self.home)
 
+            if self.skeleton is not None:
+                cmd.append('-k')
+                cmd.append(self.skeleton)
+
         if self.group is not None:
             if not self.group_exists(self.group):
                 self.module.fail_json(msg="Group %s does not exist" % self.group)