Added "B" tag to all variables.

Reviewed-by: NRich Salz <rsalz@openssl.org>
Reviewed-by: NMatt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4190)

doc/man3/OCSP_response_status.pod

@@ -56,12 +56,12 @@ setting.
 OCSP_RESPID_match() tests whether the OCSP_RESPID given in B<respid> matches
 with the X509 certificate B<cert>.
 
-OCSP_basic_sign() signs OCSP response brsp using certificate signer, private key
-key, digest dgst and additional certificates certs. If the flags option
-OCSP_NOCERTS is set then no certificates will be included in the request. If the
-flags option OCSP_RESPID_KEY is set then the responder is identified by key ID
-rather than by name. OCSP_basic_sign_ctx() also signs OCSP response brsp but
-uses the parameters contained in digest context ctx.
+OCSP_basic_sign() signs OCSP response B<brsp> using certificate B<signer>, private key
+B<key>, digest B<dgst> and additional certificates B<certs>. If the B<flags> option
+B<OCSP_NOCERTS> is set then no certificates will be included in the request. If the
+B<flags> option B<OCSP_RESPID_KEY> is set then the responder is identified by key ID
+rather than by name. OCSP_basic_sign_ctx() also signs OCSP response B<brsp> but
+uses the parameters contained in digest context B<ctx>.
 
 =head1 RETURN VALUES