Reset c->log->action on redirect to a named location. This matches what happens on internal redirects in ngx_http_handler(), and ensures that stale log actions, such as "sending to client" from the upstream module, are not used after an error_page redirection to a named location.

# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


have=NGX_SUPPRESS_WARN . auto/have

have=NGX_SMP . auto/have