launcher: Put in some markers to help diff make a readable patch

src/backends/native/meta-launcher.c

@@ -47,6 +47,8 @@ struct _MetaLauncher
   gboolean vt_switched;
 };
 
+/* AAA BBB CCC */
+
 static void handle_request_vt_switch (MetaLauncher *self);
 
 static gboolean
@@ -188,6 +190,8 @@ meta_launcher_open_device (MetaLauncher  *self,
   return ret;
 }
 
+/* QQQ RRR SSS */
+
 static void
 session_unpause (void)
 {
@@ -242,6 +246,8 @@ on_evdev_device_close (int      fd,
   close (fd);
 }
 
+/* TTT UUU VVV */
+
 static void
 handle_vt_enter (MetaLauncher *launcher)
 {
@@ -325,6 +331,8 @@ env_get_fd (const char *env)
     return g_ascii_strtoll (value, NULL, 10);
 }
 
+/* XXX YYY ZZZ */
+
 MetaLauncher *
 meta_launcher_new (void)
 {