--- src/lib/libc/sys/madvise.2	2006/12/12 00:26:38	1.5
+++ src/lib/libc/sys/madvise.2	2007/07/31 22:40:47	1.5.4.1
@@ -116,7 +116,9 @@ need the data being stored in that area
 With this feature you get the equivalent performance with mmap that you
 would expect to get with SysV shared memory calls, but in a more controllable
 and less restrictive manner.  However, note that this feature is not portable
-across UNIX platforms (though some may do the right thing by default).
+across
+.Ux
+platforms (though some may do the right thing by default).
 For more information see the MAP_NOSYNC section of
 .Xr mmap 2
 .It Dv MADV_AUTOSYNC