Change log level DEBUG -> WARNING

since unavailability of ssl protocols defined in config file
may weaken security and it is important for users.

common/ssl_calls.c

@@ -877,7 +877,7 @@ ssl_get_protocols_from_string(const char *str, long *ssl_protocols)
         log_message(LOG_LEVEL_DEBUG, "TLSv1.2 enabled");
         protocols &= ~SSL_OP_NO_TLSv1_2;
 #else
-        log_message(LOG_LEVEL_DEBUG,
+        log_message(LOG_LEVEL_WARNING,
                     "TLSv1.2 enabled by config, "
                     "but not supported by system OpenSSL");
         rv |= (1 << 1);
@@ -889,7 +889,7 @@ ssl_get_protocols_from_string(const char *str, long *ssl_protocols)
         log_message(LOG_LEVEL_DEBUG, "TLSv1.1 enabled");
         protocols &= ~SSL_OP_NO_TLSv1_1;
 #else
-        log_message(LOG_LEVEL_DEBUG,
+        log_message(LOG_LEVEL_WARNING,
                     "TLSv1.1 enabled by config, "
                     "but not supported by system OpenSSL");
         rv |= (1 << 2);
@@ -901,7 +901,7 @@ ssl_get_protocols_from_string(const char *str, long *ssl_protocols)
         log_message(LOG_LEVEL_DEBUG, "TLSv1 enabled");
         protocols &= ~SSL_OP_NO_TLSv1;
 #else
-        log_message(LOG_LEVEL_DEBUG,
+        log_message(LOG_LEVEL_WARNING,
                     "TLSv1 enabled by config, "
                     "but not supported by system OpenSSL");
         rv |= (1 << 3);
@@ -913,7 +913,7 @@ ssl_get_protocols_from_string(const char *str, long *ssl_protocols)
         log_message(LOG_LEVEL_DEBUG, "SSLv3 enabled");
         protocols &= ~SSL_OP_NO_SSLv3;
 #else
-        log_message(LOG_LEVEL_DEBUG,
+        log_message(LOG_LEVEL_WARNING,
                     "SSLv3 enabled by config, "
                     "but not supported by system OpenSSL");
         rv |= (1 << 4);