Fix incorrect =over 4 location.

Submitted by: David Waitzman <djw@bbn.com>
Reviewed by: Lutz Jaenicke
PR: [openssl.org #38]

doc/apps/x509.pod

@@ -505,6 +505,8 @@ As well as customising the name output format, it is also possible to
 customise the actual fields printed using the B<certopt> options when
 the B<text> option is present. The default behaviour is to print all fields.
 
+=over 4
+
 =item B<compatible>
 
 use the old format. This is equivalent to specifying no output options at all.
@@ -574,10 +576,6 @@ hex dump unsupported extensions.
 the value used by the B<ca> utility, equivalent to B<no_issuer>, B<no_pubkey>, B<no_header>,
 B<no_version>, B<no_sigdump> and B<no_signame>.
 
-
-
-=over 4
-
 =back
 
 =head1 EXAMPLES