It seems the strings in `qt/bitcoin.cpp` are not translated.

E.g. `qt/bitcoin-qt -lang=cz -datadir=/tmp/a2` gives me a warning in English that the datadir does not exist.

QT_TRANSLATE_NOOP("bitcoin-core", "Transaction amount too small"),
QT_TRANSLATE_NOOP("bitcoin-core", "Transaction amounts must not be negative"),
QT_TRANSLATE_NOOP("bitcoin-core", "Transaction has too long of a mempool chain"),
QT_TRANSLATE_NOOP("bitcoin-core", "Transaction must have at least one recipient"),
QT_TRANSLATE_NOOP("bitcoin-core", "Transaction too large for fee policy"),
QT_TRANSLATE_NOOP("bitcoin-core", "Transaction too large"),
QT_TRANSLATE_NOOP("bitcoin-core", "Unable to bind to %s on this computer (bind returned error %s)"),
QT_TRANSLATE_NOOP("bitcoin-core", "Unable to bind to %s on this computer. %s is probably already running."),
QT_TRANSLATE_NOOP("bitcoin-core", "Unable to start HTTP server. See debug log for details."),
QT_TRANSLATE_NOOP("bitcoin-core", "Unknown network specified in -onlynet: '%s'"),
QT_TRANSLATE_NOOP("bitcoin-core", "Unsupported argument -benchmark ignored, use -debug=bench."),
QT_TRANSLATE_NOOP("bitcoin-core", "Unsupported argument -debugnet ignored, use -debug=net."),
QT_TRANSLATE_NOOP("bitcoin-core", "Unsupported argument -tor found, use -onion."),
QT_TRANSLATE_NOOP("bitcoin-core", "Upgrade wallet to latest format on startup"),
QT_TRANSLATE_NOOP("bitcoin-core", "Use UPnP to map the listening port (default: %u)"),
QT_TRANSLATE_NOOP("bitcoin-core", "User Agent comment (%s) contains unsafe characters."),
QT_TRANSLATE_NOOP("bitcoin-core", "Username for JSON-RPC connections"),
QT_TRANSLATE_NOOP("bitcoin-core", "Verifying blocks..."),
QT_TRANSLATE_NOOP("bitcoin-core", "Verifying wallet..."),
QT_TRANSLATE_NOOP("bitcoin-core", "Wallet %s resides outside data directory %s"),
QT_TRANSLATE_NOOP("bitcoin-core", "Wallet debugging/testing options:"),
QT_TRANSLATE_NOOP("bitcoin-core", "Wallet needed to be rewritten: restart %s to complete"),
QT_TRANSLATE_NOOP("bitcoin-core", "Wallet options:"),
QT_TRANSLATE_NOOP("bitcoin-core", "Warning"),
QT_TRANSLATE_NOOP("bitcoin-core", "Warning: unknown new rules activated (versionbit %i)"),
QT_TRANSLATE_NOOP("bitcoin-core", "Whether to operate in a blocks only mode (default: %u)"),
QT_TRANSLATE_NOOP("bitcoin-core", "Zapping all transactions from wallet..."),
QT_TRANSLATE_NOOP("bitcoin-core", "ZeroMQ notification options:"),
};