Fix for ignoring return values when compiling with -Werror 

--- lib/utils.c
+++ lib/utils.c
@@ -329,7 +329,8 @@ static int interactive_pass(const char *prompt, char *pass, size_t maxlen,
 
 out_err:
 	if (!failed)
-		(void)write(outfd, "\n", 1);
+		if (write(outfd, "\n", 1) < 0)
+			failed = -1;
 	if (infd != STDIN_FILENO)
 		close(infd);
 	return failed;