fix free.c and xcpustate to use libproc instead of their own meminfo stuff?
Maybe not worth it.

extract /proc/stat parsing from vmstat into libproc somewhere.

update gfinger.p ? does anyone care?

colorization/bolding/etc environment variables for ps/top?  (volunteers?)

Rationalize `ps' option processing and allow a binding for system V like
flags and formats if POSIXLY_CORRECT is in the calling environment according
to GNU standards.  Remove PS_* constants, replace with three boolean macros
defined on fmt,CL_fmt for the three places outside of option parsing PS_ are
actually used. Also, the ps CL args fall into 4 distinct operation
categories: format flags, verbosity control, process list filters, and
sorting specs.  The man page and code might be clearer if presented in this
light.  The whole option parsing should probably be scrapped and use
getopt_long() although this would break old habits of not typing leading '-'
characters.  One thing is for sure -- there is too much conflict between
allocated letters to be able to use a union of Sys V flags and BSD flags. :(

[ Probably the best solution for inline string stuff would be for the libc
string.h to architecture-conditionally #include the inline string functions.
It might be worth the extra 4 bytes per .o for ___strtok's to have them all
internally linked so string.h could just define it.  Not really a TODO item.]
