* lisp/erc/erc-goodies.el (erc-italic-face): New face for italic text.
(erc-controls-interpret), (erc-controls-highlight): Add `italicp'.
(erc-controls-remove-regexp),
(erc-controls-highlight-regexp): Handle C-] for italic.
(erc-controls-propertize): Add `italicp' argument and use it to
conditionally propertize text with the new `erc-italic-face'.
* etc/NEWS: Announce italic text support.
2b69a4df78