tr2ps: fix handling devcntl lines with one token
tree33f8e9e28352f19131e477b23952f656a341e225
-rw-r--r-- 254 NOTICE
-rw-r--r-- 1470 README
-rw-r--r-- 217 conf.mk
drwxr-xr-x - eqn
drwxr-xr-x - home
drwxr-xr-x - mkdev
drwxr-xr-x - pic
drwxr-xr-x - tbl
drwxr-xr-x - tr2ps
drwxr-xr-x - troff