Proofreading

Fix krazy issue "1. Check for an acceptable copyright [copyright]... 1 issue found ./commands/listcommands.h: missing tags: email address line#2 (1) All source files must contain a copyright header which identifies the copyright holder(s) together with a e-mail address that can be used to reach the copyright holder. One copyright holder per line, with real email addresses please. For details regarding KDE's licensing policy please visit http://community.kde.org/Policies/Licensing_Policy. A typical copyright looks like: "Copyright 2002,2005-2006 Joe Hacker joe.hacker@kde.org"".