Check for nulls.
Check for nulls.

Change-Id: I15144999a27f9f022bd0f27ba0967048e58da182
Reviewed-on: http://gerrit.dmdirc.com/2570
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Greg Holmes <79e2475f81a6317276bf7cbb3958b20d289b78df@dmdirc.com>

greboid/Parser,ShaneMcC/DMDirc-Parser,DMDirc/Parser,csmith/DMDirc-Parser