Function: tramp-compat-file-name-quote
tramp-compat-file-name-quote is a for file-name-quote,
defined in files.el.gz.
Signature
(tramp-compat-file-name-quote NAME &optional TOP)
Documentation
Add the quotation prefix "/:" to file NAME.
If NAME is a remote file name and TOP is nil, the local part of NAME is quoted. If NAME is already a quoted file name, NAME is returned unchanged.