VMM: Decode localized numbers to the current encoding.
That avoids UnicodeDecodeErrors since locale.format(%d) may return localized
numbers, which contain NO-BREAK SPACE as the thousands separator.
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Installation
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.. toctree::
:maxdepth: 1
installation/prerequisites
installation/system_preparation
installation/postgresql_configuration
installation/dovecot_configuration
installation/postfix_configuration
installation/install_vmm