fix deprecation version number in docs

Reviewed-by: NMatt Caswell <matt@openssl.org>
Reviewed-by: NTim Hudson <tjh@openssl.org>
Reviewed-by: NRich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1079)

doc/crypto/RAND_add.pod

@@ -60,7 +60,7 @@ The other functions do not return values.
 =head1 HISTORY
 
 RAND_event() and RAND_screen() are deprecated since OpenSSL
-1.1.  Use the functions described above instead.
+1.1.0.  Use the functions described above instead.
 
 =head1 SEE ALSO