fix for printf with broken strtold; fix readline reading specified number of multibyte characters; fix read builtin to deal with invalid utf-8 continuation character as delimiter; turn off -n if supplied at interactive shell invocation

shell.c

@@ -671,6 +671,8 @@ main (int argc, char **argv, char **env)
     {
       change_flag ('i', FLAG_ON);
       interactive = 1;
+      if (forced_interactive == 0)
+	read_but_dont_execute = 0;
     }
 
 #if defined (RESTRICTED_SHELL)