* net/tramp.el (tramp-wrong-passwd-regexp): Tune regexp.

* net/tramp.el (tramp-wrong-passwd-regexp): Tune regexp.
(tramp-get-remote-tmpdir): New defun.
(tramp-make-tramp-temp-file): Use it.
(tramp-local-call-process): New defun.  Replace all calls of
`call-process' by this when appropriate.
(tramp-handle-write-region): Replace calls of `file-attributes' by
`tramp-compat-file-attributes'.
(tramp-find-shell, tramp-open-connection-setup-interactive-shell):
Make the first command a `tramp-send-command' call, with let-bind
of `tramp-end-of-output'.
(tramp-version, tramp-bug, tramp-reporter-dump-variable)
(tramp-load-report-modules, tramp-append-tramp-buffers): Move to
tramp-cmds.el.

* net/tramp-fish.el (tramp-fish-handle-copy-file)
(tramp-fish-do-copy-or-rename-file)
(tramp-fish-do-copy-or-rename-file-directly):
* net/tramp-smb.el (tramp-smb-handle-copy-file):
Add parameter PRESERVE-UID-GID.