Perl: NULL-terminate argument list. perl_parse() function expects argv/argc-style argument list, which according to the C standard must be NULL-terminated, that is: argv[argc] == NULL. This change fixes a crash (SIGSEGV) that could happen because of the buffer overrun during perl module initialization. Signed-off-by: Piotr Sikora <piotr@cloudflare.com>

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


cat << END >> $NGX_AUTO_CONFIG_H

#ifndef $have
#define $have  0
#endif

END