ls -l obscures important information

[guy at gorodish.UUCP]

>Turned out that a mistake in a makefile had caused the program to be
>installed originally with mode 2701 - not executable by the group -
>but of course ls -l shows  rwx--s--x   as if all were well.

The S5 version of "ls" shows a sticky, set-UID, or set-GID bit that
lacks the matching execute bit as a capital letter; we dropped that
into the 4.2 environment "ls" here as well.