ref: c0a7fbea1f61b1d77a09d612b85c74fd6c673b7c 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