daemon: Move internal-autosync function to new file internal.c.

This is just code motion.
(cherry picked from commit de5d416fc7)

daemon/Makefile.am

@@ -123,6 +123,7 @@ guestfsd_SOURCES = \
 	htonl.c \
 	initrd.c \
 	inotify.c \
+	internal.c \
 	is.c \
 	link.c \
 	ls.c \

daemon/internal.c

@@ -0,0 +1,46 @@
+/* libguestfs - the guestfsd daemon
+ * Copyright (C) 2012 Red Hat Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/* Internal functions are not part of the public API. */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "daemon.h"
+#include "actions.h"
+
+/* Older versions of libguestfs used to issue separate 'umount_all'
+ * and 'sync' commands just before closing the handle.  Since
+ * libguestfs 1.9.7 the library issues this 'internal_autosync'
+ * internal operation instead, allowing more control in the daemon.
+ */
+int
+do_internal_autosync (void)
+{
+  int r = 0;
+
+  if (autosync_umount)
+    r = do_umount_all ();
+
+  sync_disks ();
+
+  return r;
+}

daemon/sync.c

@@ -43,24 +43,6 @@ do_sync (void)
   return 0;
 }
 
-/* Older versions of libguestfs used to issue separate 'umount_all'
- * and 'sync' commands just before closing the handle.  Since
- * libguestfs 1.9.7 the library issues this 'internal_autosync'
- * internal operation instead, allowing more control in the daemon.
- */
-int
-do_internal_autosync (void)
-{
-  int r = 0;
-
-  if (autosync_umount)
-    r = do_umount_all ();
-
-  sync_disks ();
-
-  return r;
-}
-
 /* This is a replacement for sync(2) which is called from
  * this file and from other places in the daemon.  It works
  * on Windows too.

po/POTFILES.in

@@ -42,6 +42,7 @@ daemon/hexdump.c
 daemon/htonl.c
 daemon/initrd.c
 daemon/inotify.c
+daemon/internal.c
 daemon/is.c
 daemon/link.c
 daemon/ls.c