Add a newline when logging to stderr in the tinc binary.

src/info.c

@@ -31,6 +31,7 @@ void logger(int level, int priority, const char *format, ...) {
 	va_start(ap, format);
 	vfprintf(stderr, format, ap);
 	va_end(ap);
+	fputc('\n', stderr);
 }
 
 char *strip_weight(char *netstr) {