Colorize -printf output when using -color

[bmundt6]

It would be very handy, for instance, if bfs -type l -color -printf '%f\n' were to print colorized symlink names.

[tavianator]

Agreed! The main reason I haven't done this yet is that -printf supports directives like %.2f that color.c doesn't handle, and I don't really want to write an entire printf() implementation. But I can sidestep that just by formatting the name with sprintf() and then printing it with cfprintf(). Should be ready soon.

[tavianator]

The hard case is stuff like -printf '%10p' which adds leading padding. Haven't quite figured out what to do there.