[9fans] corrections to /sys/src/cmd/8l/l.h

[lucio@proxima.alt.za]

At the tail end of the module there is a shorter set of "#pragma
varargck"s that repeats the entries earlier in the file, disagreeing
with one of them.  The disagreeing entry matches the #pragma in
/sys/src/cmd/vl/l.h so I'm not sure which ought to be used (or what
effect the conflict has).

I'd like to see these corrected; there are other differences that seem
gratuitous, I won't mind tidying the whole lot up if it's deemed worth
it.

I have 8[acl] and v[acl] compiling error free on p9p (UBUNTU
Jaunty/386 and gNewSense/MIPS respectively) although I'm not sure
where I'm going with it, I have some vague idea of cross-development,
but I can't grasp the full multidimensionality of the exercise and I
fall asleep whenever I try to figure it out :-(

++L

PS: ELF output and other such issues is also on my list of things to
check out, but it adds even more complexity to something that really
confuses me already.