Log all response body

Add a few lines

        char s_response_body[2048];
        const char *fmt_base = "%.*s";
        snprintf((char*) s_response_body, sizeof(s_response_body), fmt_base,
				chain->buf->last - data, data);
	ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
		  "http header_all3: \"%s\"", s_response_body);

ngx_http_modsecurity_body_filter.c

ngx_int_t
ngx_http_modsecurity_body_filter(ngx_http_request_t *r, ngx_chain_t *in)
{
  .....
    for (; chain != NULL; chain = chain->next)
    {
        u_char *data = chain->buf->pos;
        int ret;
        char s_response_body[2048];
        const char *fmt_base = "%.*s";
		snprintf((char*) s_response_body, sizeof(s_response_body), fmt_base,
				chain->buf->last - data, data);
		ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
				"http header_all3: \"%s\"", s_response_body);
        msc_append_response_body(ctx->modsec_transaction, data, chain->buf->last - data);
        ret = ngx_http_modsecurity_process_intervention(ctx->modsec_transaction, r, 0);
        if (ret > 0) {
            return ngx_http_filter_finalize_request(r,
                &ngx_http_modsecurity_module, ret);
        }
  ....
    return ngx_http_next_body_filter(r, in);
}