modules: readme files regenerated - auth ... [skip ci]

src/modules/auth/README

@@ -721,8 +721,8 @@ if (has_credentials("myrealm")) {
    The function challenges a user agent. It will generate a WWW-Authorize
    header field containing a digest challenge, it will put the header
    field into a response generated from the request the server is
-   processing and send the reply. Upon reception of such a reply the user
-   agent should compute credentials and retry the request. For more
+   processing and send the 401 reply. Upon reception of such a reply the
+   user agent should compute credentials and retry the request. For more
    information regarding digest authentication see RFC2617. See module
    parameter force_stateless_reply regarding sending of the reply.
 
@@ -758,10 +758,10 @@ if (!www_authenticate("$td", "subscriber")) {
    The function challenges a user agent. It will generate a
    Proxy-Authorize header field containing a digest challenge, it will put
    the header field into a response generated from the request the server
-   is processing and send the reply. Upon reception of such a reply the
-   user agent should compute credentials and retry the request. For more
-   information regarding digest authentication see RFC2617. See module
-   parameter force_stateless_reply regarding sending of the reply.
+   is processing and send the 407 reply. Upon reception of such a reply
+   the user agent should compute credentials and retry the request. For
+   more information regarding digest authentication see RFC2617. See
+   module parameter force_stateless_reply regarding sending of the reply.
 
    Meaning of the parameters is the same as for function
    www_challenge(realm, flags)
@@ -780,7 +780,9 @@ if (!proxy_authenticate("$fd", "subscriber")) {
    The function challenges a user agent for authentication. It combines
    the functions www_challenge() and proxy_challenge(), by calling
    internally the first one for REGISTER requests and the second one for
-   the rest of other request types.
+   the rest of other request types. In other words, it challenges for
+   authentication by sending a 401 reply for REGISTER requests and 407
+   reply for the other types of SIP requests.
 
    Meaning of the parameters the same as for function www_challenge(realm,
    flags)