Bryan O'Sullivan writes:
> # HG changeset patch
> # User Bryan O'Sullivan
> # Date 1491947652 25200
> # Tue Apr 11 14:54:12 2017 -0700
> # Node ID 19530f1d18bc0b6697f2996f089c614548f90269
> # Parent 800f9ec2664e515d8ad807c0df1efaccda8ff5e5
> stdio: add
# HG changeset patch
# User Bryan O'Sullivan
# Date 1491947652 25200
# Tue Apr 11 14:54:12 2017 -0700
# Node ID 19530f1d18bc0b6697f2996f089c614548f90269
# Parent 800f9ec2664e515d8ad807c0df1efaccda8ff5e5
stdio: add Linux-specific tests for error checking
diff --git