Minor tweak to perlvar.pod

Just a couple of quick updates to perlvar.pod to clean up grammar and
formatting.

-spp

--- perlvar.old Tue Apr 18 10:21:06 2000
+++ perlvar.pod Tue Apr 18 10:23:45 2000
@@ -814,10 +814,10 @@

     $^M = 'a' x (1 << 16);

-would allocate a 64K buffer for use when in emergency.  See the
+would allocate a 64K buffer for use in an emergency.  See the
 F<INSTALL> file in the Perl distribution for information on how to
 enable this option.  To discourage casual use of this advanced
-feature, there is no L<English> long name for this variable.
+feature, there is no L<English|English> long name for this variable.

 =item $OSNAME
                                                                               

• Minor tweak to perlvar.pod by Stephen P. Potter