If for some reason there are no tokens from tokeniseLine (I can't reproduce) then add an empty one.

Fixes issue 3069.

Change-Id: I832f3caa972ff491a61dfd2f7eca2e715fde8903
Reviewed-on: http://gerrit.dmdirc.com/89
Reviewed-by: Chris Smith <chris@dmdirc.com>
Tested-by: Chris Smith <chris@dmdirc.com>

src/com/dmdirc/parser/irc/IRCParser.java

@@ -875,7 +875,7 @@ public class IRCParser implements SecureParser, Runnable {
      */
     public static String[] tokeniseLine(final String line) {
         if (line == null) {
-            return new String[]{"", }; // Return empty string[]
+            return new String[]{""}; // Return empty string[]
         }
 
         final int lastarg = line.indexOf(" :");
@@ -890,6 +890,7 @@ public class IRCParser implements SecureParser, Runnable {
             tokens = line.split(" ");
         }
 
+        if (tokens.length < 1) { tokens = new String[]{""}; }
         return tokens;
     }