more formatting.

Reference: /n/atom/patch/applied2013/adrfmt
Date: Wed Oct  9 08:24:12 CES 2013
Signed-off-by: quanstro@quanstro.net

--- /sys/man/9nix/adr	Wed Oct  9 08:24:04 2013
+++ /sys/man/9nix/adr	Wed Oct  9 08:24:05 2013
@@ -37,11 +37,11 @@
 .PB
 enum {
 	Cnone		= -1,
-	Cmax		= 32767,
+	Cmax			= 32767,
 };
 .PB
 .PD 0
-.ta +\w'\fL      'u +\w'\fL    'u +6n +4n
+.ta +\w'\fL         'u +\w'\fL    'u +6n +4n
 uintmem	adralloc(uintmem base, uintmem len, int align,
 		int type, int use, uint flags)
 .PB
@@ -71,7 +71,7 @@
 .IR adr .
 Map entries consist of a base, length address type
 (e.g. memory, mmio, etc.), current use, color (NUMA domain), and
-caching flags.  The map is initlialized from the
+memory cachability flags.  The map is initlialized from the
 .B *e820
 configuration variable (see
 .IR plan9.ini (8)),
@@ -136,9 +136,14 @@
 to maintain consistent caching flags.
 .TP
 .BI adrsetcolor( pa\fP,\fP\ len\fP,\fP\ color )
-Set the color for a range of memory.
+Set the color (NUMA domain) for a range of memory.
 .SH SOURCE
 .B /sys/src/nix/k10/adr.c
 .SH "SEE ALSO"
 .IR plan9.ini (8),
 .IR vmap (9nix).
+.SH BUGS
+.I Adrsetcolor
+may fail if a Adr map needs to be split, and the memory
+is already in use.  Color memory early in boot to avoid this
+issue.