Avoid using obsolete accept-process-output arg

* lisp/gnus/nnheader.el (nnheader-accept-process-output):
* lisp/net/dns.el (dns-query):
* lisp/net/imap.el (imap-wait-for-tag):
* lisp/net/network-stream.el (network-stream-get-response):
* lisp/net/pop3.el (pop3-accept-process-output):
* lisp/obsolete/starttls.el (starttls-negotiate-gnutls)
(starttls-open-stream-gnutls):
* lisp/server.el (server-eval-at):
* lisp/textmodes/ispell.el (ispell-accept-output):
Do not depend on the obsolete milliseconds argument of
accept-process-output.

lisp/gnus/nnheader.el

@@ -1042,12 +1042,7 @@ See `find-file-noselect' for the arguments."
 ;; When changing this function, consider changing `pop3-accept-process-output'
 ;; as well.
 (defun nnheader-accept-process-output (process)
-  (accept-process-output
-   process
-   (truncate nnheader-read-timeout)
-   (truncate (* (- nnheader-read-timeout
-		   (truncate nnheader-read-timeout))
-		1000))))
+  (accept-process-output process nnheader-read-timeout))
 
 (defun nnheader-update-marks-actions (backend-marks actions)
   (dolist (action actions)

lisp/net/dns.el

@@ -432,8 +432,9 @@ If REVERSEP, look up an IP address."
                       tcp-p))
           (while (and (zerop (buffer-size))
                       (> times 0))
-            (sit-for (/ step 1000.0))
-            (accept-process-output process 0 step)
+	    (let ((step-sec (/ step 1000.0)))
+	      (sit-for step-sec)
+	      (accept-process-output process step-sec))
             (setq times (- times step)))
           (condition-case nil
               (delete-process process)

lisp/net/imap.el

@@ -1929,7 +1929,7 @@ on failure."
       ;; iteration of the loop above.
       (when (and (null imap-continuation)
 		 (< imap-reached-tag tag))
-	(accept-process-output imap-process 0 0))
+	(accept-process-output imap-process 0))
       (when imap-have-messaged
 	(message ""))
       (and (memq (process-status imap-process) '(open run))

lisp/net/network-stream.el

@@ -375,7 +375,7 @@ gnutls-boot (as returned by `gnutls-boot-parameters')."
 	(goto-char start)
 	(while (and (memq (process-status stream) '(open run))
 		    (not (re-search-forward end-of-command nil t)))
-	  (accept-process-output stream 0 50)
+	  (accept-process-output stream 0.05)
 	  (goto-char start))
 	;; Return the data we got back, or nil if the process died.
 	(unless (= start (point))

lisp/net/pop3.el

@@ -165,12 +165,7 @@ Used for APOP authentication.")
       "How long pop3 should wait between checking for the end of output.
 Shorter values mean quicker response, but are more CPU intensive.")
     (defun pop3-accept-process-output (process)
-      (accept-process-output
-       process
-       (truncate pop3-read-timeout)
-       (truncate (* (- pop3-read-timeout
-		       (truncate pop3-read-timeout))
-		    1000))))))
+      (accept-process-output process pop3-read-timeout))))
 
 (defvar pop3-uidl)
 ;; List of UIDLs of existing messages at present in the server:

lisp/obsolete/starttls.el

@@ -217,7 +217,7 @@ handshake, or nil on failure."
 						starttls-success nil t))
 				 (setq done-bad (re-search-forward
 						 starttls-failure nil t))))))
-	    (accept-process-output process 1 100)
+	    (accept-process-output process 1.1)
 	    (sit-for 0.1))
 	  (setq info (buffer-substring-no-properties old-max (point-max)))
 	  (delete-region old-max (point-max))
@@ -251,7 +251,7 @@ handshake, or nil on failure."
 		  (goto-char old-max)
 		  (not (setq done (re-search-forward
 				   starttls-connect nil t)))))
-      (accept-process-output process 0 100)
+      (accept-process-output process 0.1)
       (sit-for 0.1))
     (if done
 	(with-current-buffer buffer

lisp/server.el

@@ -1744,7 +1744,7 @@ returns the process ID of the Emacs instance running \"server\"."
 				   (server-quote-arg (format "%S" form))
 				   "\n"))
       (while (memq (process-status process) '(open run))
-	(accept-process-output process 0 10))
+	(accept-process-output process 0.01))
       (goto-char (point-min))
       ;; If the result is nil, there's nothing in the buffer.  If the
       ;; result is non-nil, it's after "-print ".

lisp/textmodes/ispell.el

@@ -1782,11 +1782,15 @@ You can set this variable in hooks in your init file -- eg:
 
 
 (defun ispell-accept-output (&optional timeout-secs timeout-msecs)
-  "Wait for output from Ispell process, or TIMEOUT-SECS and TIMEOUT-MSECS.
+  "Wait for output from Ispell process, or for TIMEOUT-SECS + TIMEOUT-MSECS.
+\(The TIMEOUT-MSECS argument is obsolete and should be avoided.)
 If asynchronous subprocesses are not supported, call function `ispell-filter'
 and pass it the output of the last Ispell invocation."
   (if ispell-async-processp
-      (accept-process-output ispell-process timeout-secs timeout-msecs)
+      (let ((timeout (if timeout-msecs
+			 (+ (or timeout-secs 0) (/ timeout-msecs 1000.0))
+		       timeout-secs)))
+	(accept-process-output ispell-process timeout))
     (if (null ispell-process)
 	(error "No Ispell process to read output from!")
       (let ((buf ispell-output-buffer)