TABs appear simply as a space under MSW (because we don't use LBS_USETABSTOPS style there) but are aligned to (multiple of 8?) tab stops under GTK. It's not clear which behaviour is actually preferable so for now just document the inconsistency and advise people to use spaces instead. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72660 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775