Fix tdesu/tdesudo argument compatibility problem

(cherry picked from commit 59ee4f6630)

kdesu/kdesu/kdesu.cpp

@@ -63,6 +63,7 @@ static KCmdLineOptions options[] = {
     { "p <prio>", I18N_NOOP("Set priority value: 0 <= prio <= 100, 0 is lowest"), "50" },
     { "r", I18N_NOOP("Use realtime scheduling"), 0 },
     { "nonewdcop", I18N_NOOP("Let command use existing dcopserver"), 0 },
+    { "comment <comment>", I18N_NOOP("Ignored"), "" },
     { "noignorebutton", I18N_NOOP("Do not display ignore button"), 0 },
     { "i <icon name>", I18N_NOOP("Specify icon to use in the password dialog"), 0},
     { "d", I18N_NOOP("Do not show the command to be run in the dialog"), 0},