* irc: fix display of TOPIC and QUIT messages with an empty trailing parameter (issue #1797)
* irc: fix parsing of messages with trailing spaces and no trailing parameter (issue #1803)
* irc: add missing tag "irc_numeric" in all numeric IRC commands (issue #1804)
- * irc: display an error message when using command /dcc without xfer plugin loaded
+ * irc: display an error message when using command `/dcc` without xfer plugin loaded
* irc: display ACCOUNT and CHGHOST commands in private buffers
* irc: fix extract of isupport value when it is last in list and without value (issue #1807)
* irc: fix target buffer of generic errors when they contain a target nick (issue #1814)