[BUG] Namespace prefix t3 for id on file is not defined in locallang_reminder.xlf

Missing namespace prefix in XLF files leads to warnings:

TYPO3 [WARNING] request="1732fb9adaf05" component="TYPO3.CMS.Core.Error.ErrorHandler": Core: Error handler (BE): PHP Warning: simplexml_load_string(): namespace error : Namespace prefix t3 for id on file is not defined in .../public/typo3/sysext/core/Classes/Localization/Parser/AbstractXmlParser.php line 116 
TYPO3 [WARNING] request="1732fb9adaf05" component="TYPO3.CMS.Core.Error.ErrorHandler": Core: Error handler (BE): PHP Warning: simplexml_load_string(): ext" original="messages" date="2022-01-18T14:18:30Z" product-name="be_secure_pw" in .../public/typo3/sysext/core/Classes/Localization/Parser/AbstractXmlParser.php line 116 
TYPO3 [WARNING] request="1732fb9adaf05" component="TYPO3.CMS.Core.Error.ErrorHandler": Core: Error handler (BE): PHP Warning: simplexml_load_string():                                                                                ^ in .../public/typo3/sysext/core/Classes/Localization/Parser/AbstractXmlParser.php line 116

Step to reproduce:

rm -Rf var/cache/
bin/typo3 cache:warmup --verbose --no-interaction

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