Cleaned up read_and_expand_tabs
Cleaned up read_and_expand_tabs

tst2005/lunamark,tst2005/lunamark,simoncozens/lunamark,simoncozens/lunamark,tst2005/lunamark,jgm/lunamark,jgm/lunamark,jgm/lunamark,simoncozens/lunamark