Fix CAP match for some IRC daemons

Some IRC daemons such as InspIRCd return an random string after a
client's CAP REQ request.  This would fail to match and block SASL
AUTHENTICATEs.  Also the space after sasl would also block the above
AUTHENTICATEs.

This change:

* allows for emitting that output in logs via debug in config
* stops matching on said field which can be an irrelevant moving
target
* removes the trailing space for the mentioned sasl field

Example:

$ openssl s_client -connect irc.corp.com:6697
...
CAP REQ :sasl
:irc.corp.com CAP 354AAUXBK ACK :sasl
^C
$ openssl s_client -connect irc.corp.com:6697
...
CAP REQ :sasl
:irc.corp.com CAP 354AAUXC8 ACK :sasl

lib/irc.js

@@ -597,9 +597,14 @@ function Client(server, nick, opt) {
 
  // for sasl
  case 'CAP':
- if (message.args[0] === '*' &&
- message.args[1] === 'ACK' &&
- message.args[2] === 'sasl ') // there's a space after sasl
+ // if we are debug, log output from the server
+ if (self.opt.debug) {
+ util.log(message.args[0] + '-')
+ util.log(message.args[1] + '-')
+ util.log(message.args[2] + '-')
+ }
+ if (message.args[1] === 'ACK' &&
+ message.args[2] === 'sasl')
  self.send('AUTHENTICATE', 'PLAIN');
  break;
  case 'AUTHENTICATE':

package.json

@@ -15,7 +15,8 @@
  "Chris Nehren <[email protected]>",
  "Henri Niemeläinen <[email protected]>",
  "Alex Miles <[email protected]>",
- "Simmo Saan <[email protected]>"
+ "Simmo Saan <[email protected]>",
+ "Nick Silkey <[email protected]>"
  ],
  "repository": {
  "type": "git",