Replaced expand_tabs & lines with get_input.
Replaced expand_tabs & lines with get_input.

get_input now accepts an array of filenames, and iterates
over lines in all of them.

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