* lisp/progmodes/etags.el (tags-query-replace): Remove incorrect info
regarding non-existent parameters.
If you exit (\\[keyboard-quit], RET or q), you can resume the query replace
with the command \\[tags-loop-continue].
Fourth arg FILE-LIST-FORM non-nil means initialize the replacement loop.
-Fifth and sixth arguments START and END are accepted, for compatibility
-with `query-replace-regexp', and ignored.
If FILE-LIST-FORM is non-nil, it is a form to evaluate to
produce the list of files to search.