tee with no args is a no-op (Was: Different variable assignments)

In article <vfeimj$2qggf$3@dont-email.me>,
Lem Novantotto  <Lem@none.invalid> wrote:
...

| $ openconnect -b unresponsive:local:ip:address | tee | grep .

Note that "tee" when run with no args is a no-op.
It is, in fact, equivalent to running "cat" (with no args).

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    Rick C. Hodgin
I am not a crook.
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