tbl: adjust vertical and horizontal lines to meet properly
treeb6ae377b66b51d3d7fececc10fd04682b5c985ed
-rw-r--r-- 259 NOTICE
-rw-r--r-- 1988 README
-rw-r--r-- 93 conf.mk
drwxr-xr-x - eqn
drwxr-xr-x - grap
drwxr-xr-x - home
drwxr-xr-x - mkdev
drwxr-xr-x - pic
drwxr-xr-x - refer
drwxr-xr-x - tbl
drwxr-xr-x - tr2ps
drwxr-xr-x - troff