Fixes rendering issue with chsh

--- login-utils/chsh.c.orig	2015-08-01 23:56:41.281133707 +0200
+++ login-utils/chsh.c	2015-08-01 23:56:52.116132896 +0200
@@ -179,6 +179,7 @@ static char *ask_new_shell(char *questio
 	if (!oldshell)
 		oldshell = "";
 	printf("%s [%s]: ", question, oldshell);
+	fflush(stdout);
 	sz = getline(&ans, &dummy, stdin);
 	if (sz == -1)
 		return NULL;