$NetBSD$

Fix a typo in the comments :-)

--- aclocal.m4.orig	2011-11-30 18:00:22.000000000 +0100
+++ aclocal.m4	2011-11-30 18:00:28.000000000 +0100
@@ -8101,7 +8101,7 @@
 
 # There are a few dirty hacks below to avoid letting `AC_PROG_CC' be
 # written in clear, in which case automake, when reading aclocal.m4,
-# will think it sees a *use*, and therefore will trigger all it's
+# will think it sees a *use*, and therefore will trigger all its
 # C support machinery.  Also note that it means that autoscan, seeing
 # CC etc. in the Makefile, will ask for an AC_PROG_CC use...
 
