observation: cygrunsrv -env option: max env var size is 256 chars

[Tom Rodman]

Based on a few tests this morning  under 1.5.9(0.112/4/2),
the cygrunsrv -env option supports env vars
with a string length below 257 characters.  Larger env vars 
seem to get into the registry, but not into the service's env.

If I'm right it would be nice if "cygrunsrv --help" showed this.
I read the help as saying up to 255 separate env vars may be
defined.

--
thanks,
Tom Rodman
perl -e 'print unpack("u", "1\:6UP\,\$\!T\<F\]D\;6\%N\+F\-O\;0H\`");'


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