router_readconfig: replace the last fprintf with logerr
Pull request missed this one.
@@ -1315,7 +1315,7 @@ router_readconfig(router *orig,
char *p;
char *carets;
size_t carlen;
- fprintf(stderr, "%s:%zd:%zd: %s\n", path, ret->parser_err.line,
+ logerr("%s:%zd:%zd: %s\n", path, ret->parser_err.line,
ret->parser_err.start, ret->parser_err.msg);
/* get some relevant context from buff and put ^^^^ below it
* to point out the position of the error */
