the previous patch wasn't as dire as thought, but doing extra searches of
the is(lower|upper)rune tables was wrong (title case was left out), and
only saved 2% on table size.  surely better compression could be had
if we cared.

Reference: /n/atom/patch/applied/runetypefull
Date: Fri Mar 14 16:48:16 CET 2014
Signed-off-by: quanstro@quanstro.net

--- /sys/src/libc/port/runetype.c	Fri Mar 14 16:46:18 2014
+++ /sys/src/libc/port/runetype.c	Fri Mar 14 16:46:18 2014
@@ -94,8 +94,6 @@
 {
 	Rune *p;
 
-	if(isupperrune(c) || islowerrune(c))
-		return 1;
 	p = bsearch(c, __alpha2, nelem(__alpha2)/2, 2);
 	if(p && c >= p[0] && c <= p[1])
 		return 1;