Move s_server -dcert and -dkey options out of the undocumented feature area
because they are useful for the DSA situation and should be recognized by the
users. Thanks to Steve for the original hint.
diff --git a/apps/s_server.c b/apps/s_server.c
index 35b9718..dbe8a80 100644
--- a/apps/s_server.c
+++ b/apps/s_server.c
@@ -196,6 +196,8 @@
 	BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 	BIO_printf(bio_err," -key arg      - RSA file to use, PEM format assumed, in cert file if\n");
 	BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
+	BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
+	BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 #ifdef FIONBIO
 	BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 #endif