Repair mimetype icon usage, part 1. The following are not fully verified in source as of this commit due to ubiquity: info, unknown

src/knowit.cpp

@@ -169,7 +169,7 @@ Knowit::Knowit(TQWidget*, const char *name) : TDEMainWindow(0, name),
    new TDEAction(i18n("Insert &file..."), "", "", TQT_TQOBJECT(this),
       TQT_SLOT(slotEditInsertFile()), actionCollection(), "edit_insert_file");
    actionRawTextMode = new TDEToggleAction(i18n("&Raw Text Mode"),
-       "source", "F10", TQT_TQOBJECT(this), TQT_SLOT(slotRawTextMode()),
+       "text-x-src", "F10", TQT_TQOBJECT(this), TQT_SLOT(slotRawTextMode()),
        actionCollection(), "edit_raw_text");
 
    /* Actions: edit setup */