Most of this change is to boilerplate commentary such as license URLs.
This change was prompted by ftp://ftp.gnu.org's going-away party,
planned for November. Change these FTP URLs to https://ftp.gnu.org
instead. Make similar changes for URLs to other organizations moving
away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and
fsf.org when this works, as this will further help defend against
man-in-the-middle attacks (for this part I omitted the MS-DOS and
MS-Windows sources and the test tarballs to keep the workload down).
HTTPS is not fully working to lists.gnu.org so I left those URLs alone
for now.
Bug#25349
* lisp/erc/erc-join.el (erc-autojoin-after-ident): Switch order of
server names.
(erc-autojoin-channels, erc-autojoin-add, erc-autojoin-remove):
Likewise.
(erc-server-join-channel): Move to erc.el.
* lisp/erc/erc.el (erc-server-join-channel): Move from erc-join.el.
(erc-cmd-JOIN): Use erc-server-join-channel.
* lisp/erc/erc-track.el, lisp/erc/erc-networks.el, lisp/erc/erc-netsplit.el:
* lisp/erc/erc-dcc.el, lisp/erc/erc-backend.el: Use cl-lib, nth, pcase, and
called-interactively-p instead of cl.
* lisp/erc/erc-speedbar.el, lisp/erc/erc-services.el:
* lisp/erc/erc-pcomplete.el, lisp/erc/erc-notify.el, lisp/erc/erc-match.el:
* lisp/erc/erc-log.el, lisp/erc/erc-join.el, lisp/erc/erc-ezbounce.el:
* lisp/erc/erc-capab.el: Don't require cl since we don't use it.
* lisp/erc/erc.el: Use cl-lib, nth, pcase, and called-interactively-p i.s.o cl.
(erc-lurker-ignore-chars, erc-common-server-suffixes): Move before first use.
* lisp/json.el: Don't require cl since we don't use it.
* lisp/color.el: Don't require cl.
(color-complement): `caddr' -> `nth 2'.
* test/automated/ert-x-tests.el: Use cl-lib.
* test/automated/ert-tests.el: Use lexical-binding and cl-lib.
* lisp/erc/erc-join.el (erc-server-join-channel): New function to look up
the channel password via auth-source.
(erc-autojoin-channels): Use it.
(erc-autojoin-after-ident): Ditto.
(erc-autojoin-channels-alist): Mention auth-source.
* lisp/erc/erc-backend.el (erc-coding-system-precedence):
* lisp/erc/erc-join.el (erc-autojoin-delay, erc-autojoin-timing):
Add missing :version settings.
* etc/NEWS: We don't need to duplicate the doc-strings of variables.
