Another bug in Ultrix 4.0 csh

[Dan Barrett]

	Here's a bug in the Ultrix 4.0 (RISC) csh.  Make a single command
line executing 5 (or more) aliases on it.  On a Sun, the 5 aliases execute.
On a DECstation, you get the error message "Alias loop."

Example:

	% alias a "/bin/echo a"
	% alias b "/bin/echo b"
	% alias c "/bin/echo c"
	% alias d "/bin/echo d"
	% alias e "/bin/echo e"

	% a; b; c; d; e
	Alias loop.

Yeah, I'll submit an SPR.

                                                        Dan

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