Replace 'dump' by 'main/archive' in bind(1).

Reference: /n/sources/patch/applied/man-1-bind-dump
Date: Thu Apr 19 15:17:58 CES 2012
Signed-off-by: djc@9grid.fr

--- /sys/man/1/bind	Thu Apr 19 15:17:45 2012
+++ /sys/man/1/bind	Thu Apr 19 15:17:42 2012
@@ -198,7 +198,7 @@
 To compile a program with the C library from July 16, 1992:
 .IP
 .EX
-mount /srv/boot /n/dump dump
+mount /srv/boot /n/dump main/archive
 bind /n/dump/1992/0716/mips/lib/libc.a /mips/lib/libc.a
 mk
 .EE