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/freebsd-11.0-release/bin/sh/tests/builtins/
H A Ddot3.0219390 Tue Mar 08 00:04:27 MST 2011 jilles sh: Test that . /dev/null returns exit status 0 and does not preserve $?.

Preserving $? may cause problems particularly if set -e is in effect.

It may be useful to preserve the old value of $? in the dot script but this
must not be implemented in such a way that it would break this test.

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