Minor bugfixes.

@@ -235,6 +235,7 @@ mu_debug_print (mu_debug_t debug, mu_log_level_t level,
 		const char *format, ...)
 {
   va_list ap;
+  va_start(ap, format);
   mu_debug_printv (debug, level, format, ap);
   va_end (ap);
   return 0;

@@ -489,7 +489,7 @@ send_fragments (mu_mailer_t mailer,
 		struct timeval *delay,
 		mu_address_t from, mu_address_t to)
 {
-  int status;
+  int status = 0;
   size_t i;
   char *msgid = NULL;