fix translation strings with multiple parameters


this fixes a lot of warnings given by msgmerge:

../PLCOpenEditor.py:196: warning: 'msgid' format string with unnamed arguments cannot be properly localized:
The translator cannot reorder the arguments.
Please consider using a format string with named arguments,

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.. Beremiz documentation master file

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Beremiz's documentation

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=======================

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Contents:

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.. toctree::

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   :maxdepth: 2

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   overview

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   manual/index

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   standards

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