ref: ef596514f90ad4e2f481514f64797f76cd8f5ed3 dir: /rc/bin/troff2gif/
#!/bin/rc {/bin/troff $*|/bin/lp -dstdout|/bin/gs -dNOPAUSE -dQUIET '-sOUTPUTFILE='/fd/1 '-sDEVICE=plan9bm' - quit.ps| crop -c 255 255 255 | togif} >[2] /dev/null