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Guido Trotter authored
Read the first non-empty file line. When strict is set, abort if more than one line is non-empty. Some unittests inspired by the reverted ones from commit b774bb10 , and some new ones. Signed-off-by: Guido Trotter <ultrotter@google.com> Reviewed-by: Iustin Pop <iustin@google.com>
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