StdlibUnittest: consume the carriage return on stdout #25271
Merged
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This was already being done for the stderr, but not for stdout. Doing
this means that we no longer get spurious carriage returns on the stdout
output stream on Windows. This is needed for supporting the
validation test suite on Windows.
Replace this paragraph with a description of your changes and rationale. Provide links to external references/discussions if appropriate.
Resolves SR-NNNN.