This is the equivalent of doing no warnings;. It simply silences the message without addressing the issue (preventing error log from being filled with child's STDERR output). If your goal is simply to circumvent perlcritic, it provides far better ways of doing that.

In reply to Re^2: Using IPC::Open3 instead of backtick operator by ikegami
in thread Using IPC::Open3 instead of backtick operator by rcrews

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