mdwsetup.py (progoutput): Only read one byte to decide whether there is more.
authorMark Wooding <mdw@distorted.org.uk>
Fri, 4 Oct 2019 15:22:15 +0000 (16:22 +0100)
committerMark Wooding <mdw@distorted.org.uk>
Fri, 8 May 2020 11:30:13 +0000 (12:30 +0100)
There's no point in slurping the entire output now that we're closing
the pipe /before/ trying to waitpid(2): the child will hit `SIGPIPE' (or
`EPIPE') rather than blocking on output.


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