* lisp/progmodes/make-mode.el (makefile-browser-fill): * lisp/url/url-mailto.el (url-mailto): Use `mapc` instead of `mapconcat`.
* lisp/progmodes/make-mode.el (makefile-browser-fill): * lisp/url/url-mailto.el (url-mailto): Use `mapc` instead of `mapconcat`.