DOC: ssl: missing LF

An error message miss LF
(cherry picked from commit bc965348d7ccc0a306504232ab85dc240fd31fbf)
diff --git a/src/ssl_sock.c b/src/ssl_sock.c
index 2ae45ec..8f698c0 100644
--- a/src/ssl_sock.c
+++ b/src/ssl_sock.c
@@ -1760,7 +1760,7 @@
 #ifndef OPENSSL_NO_SSL3
 		SSL_CTX_set_ssl_version(srv->ssl_ctx.ctx, SSLv3_client_method());
 #else
-		Alert("SSLv3 support requested but unavailable.");
+		Alert("SSLv3 support requested but unavailable.\n");
 		cfgerr++;
 #endif
 	}