/sources/plan9/sys/lib/troff/term/
      1538 1999-12-12 tab.37
      1920 1999-12-12 tab.450
      1943 1999-12-12 tab.450-12
      1349 1999-12-12 tab.dumb
      1351 1999-12-12 tab.i300
      1349 1999-12-12 tab.lp
      1351 1999-12-12 tab.post
      2162 1999-12-12 tab.think
      2166 1999-12-12 tab.thinkbold
      2199 1999-12-12 tab.thinksmall
      1911 1999-12-12 tab.utf