Fix L<> content in manpages

L<foo|foo> is sub-optimal  If the xref is the same as the title,
which is what we do, then you only need L<foo>.  This fixes all
1457 occurrences in 349 files.  Approximately.  (And pod used to
need both.)

Reviewed-by: Richard Levitte <levitte@openssl.org>

doc/apps/pkcs7.pod

diff --git a/doc/apps/pkcs7.pod b/doc/apps/pkcs7.pod
index acfb810..024175e 100644
--- a/doc/apps/pkcs7.pod
+++ b/doc/apps/pkcs7.pod
@@ -100,6 +100,6 @@
 
 =head1 SEE ALSO
 
-L<crl2pkcs7(1)|crl2pkcs7(1)>
+L<crl2pkcs7(1)>
 
 =cut