[VALIDATOR] Dutch translation of ISSN message
Fixed Dutch translation of IBAN message
merged branch WouterJ/patch-2 (PR #7762)

This PR was merged into the master branch.

Discussion
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[VALIDATOR] Dutch translation of ISSN message

Added dutch translation of the ISSN message (added in #7756 )

Commits
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d336979 [VALIDATOR] Dutch translation of ISSN message