Plan 9 from Bell Labs’s /n/sources/patch/applied/syslog-errstr/readme

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Distributed under the Lucent Public License version 1.02.
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syslog called werrstr with the error previously saved, but werrstr's first
argument is a format, and if the error contained % it can and does cause crashes.
just call errstr again to swap it back. it's needed in case the syslog format refers to %r.
also call errstr at the right point, after the call to sysname(), which does a system call.

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