Adjust write-region so file name is at the beginning again

Adjust write-region so file name is at the beginning again

* lisp/epa-file.el (epa-file-write-region):
* lisp/gnus/mm-util.el (mm-append-to-file):
* lisp/jka-compr.el (jka-compr-write-region):
* lisp/net/ange-ftp.el (ange-ftp-write-region):
* lisp/net/tramp-gvfs.el (tramp-gvfs-handle-write-region):
* lisp/net/tramp-sh.el (tramp-sh-handle-write-region):
* src/fileio.c (write_region): Put file name at the beginning and move
number of characters to the end of the message.