SSL: fixed log level for a few unsupported version errors.

Change-Id: Ic5ddde1fdbdcf6c31eda1911d6c5211925481884
Signed-off-by: Piotr Sikora <piotrsikora@google.com>

src/event/ngx_event_openssl.c

diff --git a/src/event/ngx_event_openssl.c b/src/event/ngx_event_openssl.c
index 1ca3ce6..59cdf79 100644
--- a/src/event/ngx_event_openssl.c
+++ b/src/event/ngx_event_openssl.c
@@ -2101,6 +2101,7 @@
             || n == SSL_R_UNEXPECTED_RECORD                          /*  245 */
             || n == SSL_R_UNKNOWN_ALERT_TYPE                         /*  246 */
             || n == SSL_R_UNKNOWN_PROTOCOL                           /*  252 */
+            || n == SSL_R_UNSUPPORTED_PROTOCOL                       /*  258 */
             || n == SSL_R_WRONG_VERSION_NUMBER                       /*  267 */
             || n == SSL_R_DECRYPTION_FAILED_OR_BAD_RECORD_MAC        /*  281 */
 #ifdef SSL_R_RENEGOTIATE_EXT_TOO_LONG
@@ -2120,6 +2121,9 @@
 #ifdef SSL_R_INAPPROPRIATE_FALLBACK
             || n == SSL_R_INAPPROPRIATE_FALLBACK                     /*  373 */
 #endif
+#ifdef SSL_R_VERSION_TOO_LOW
+            || n == SSL_R_VERSION_TOO_LOW                            /*  396 */
+#endif
             || n == 1000 /* SSL_R_SSLV3_ALERT_CLOSE_NOTIFY */
 #ifdef SSL_R_SSLV3_ALERT_UNEXPECTED_MESSAGE
             || n == SSL_R_SSLV3_ALERT_UNEXPECTED_MESSAGE             /* 1010 */