config-dump: Fix crash when used without --define
The default value is None, which is not iterable. Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>
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@ -64,6 +64,7 @@ def main():
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"-e",
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"-e",
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"--define",
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"--define",
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action="append",
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action="append",
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default=[],
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metavar="VAR=VALUE",
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metavar="VAR=VALUE",
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type=validate_definition,
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type=validate_definition,
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help=(
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help=(
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