DAV_HEADER_IF     215 http-push.c    	if (options & DAV_HEADER_IF) {
DAV_HEADER_IF     448 http-push.c    	dav_headers = get_dav_token_headers(lock, DAV_HEADER_IF | DAV_HEADER_TIMEOUT);
DAV_HEADER_IF    1390 http-push.c    	dav_headers = get_dav_token_headers(lock, DAV_HEADER_IF);
DAV_HEADER_IF    1518 http-push.c    		dav_headers = get_dav_token_headers(lock, DAV_HEADER_IF);