Fixed $request_length for HTTP/3. New field r->parse_start is introduced to substitute r->request_start and r->header_name_start for request length accounting. These fields only work for this purpose in HTTP/1 because HTTP/1 request line and header line start with these values. Also, error logging is now fixed to output the right part of the request.

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


# aCC: HP ANSI C++ B3910B A.03.55.02

# C89 mode

CFLAGS="$CFLAGS -Ae"
CC_TEST_FLAGS="-Ae"

PCRE_OPT="$PCRE_OPT -Ae"
ZLIB_OPT="$ZLIB_OPT -Ae"