Plan 9 from Bell Labs’s /n/sources/patch/sorry/termrc-superfluous-sysname-check/readme

Copyright © 2009 Alcatel-Lucent.
Distributed under the Lucent Public License version 1.02.
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termrc checks both (~ $#sysname 0) and (~ $sysname '').
The latter would cover the former, but is not possible
for `{} to return a null string in any circumstances, so
the check is superfluous.

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