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", "Error loading %s"),
QT_TRANSLATE_NOOP("bitcoin-core", "Error loading %s: Wallet corrupted"),
QT_TRANSLATE_NOOP("bitcoin-core", "Error loading %s: Wallet requires newer version of %s"),
QT_TRANSLATE_NOOP("bitcoin-core", "Error loading %s: You can't disable HD on a already existing HD wallet"),
QT_TRANSLATE_NOOP("bitcoin-core", "Error loading block database"),
QT_TRANSLATE_NOOP("bitcoin-core", "Error opening block database"),
QT_TRANSLATE_NOOP("bitcoin-core", "Error reading from database, shutting down."),
QT_TRANSLATE_NOOP("bitcoin-core", "Error"),
QT_TRANSLATE_NOOP("bitcoin-core", "Error: A fatal internal error occurred, see debug.log for details"),
QT_TRANSLATE_NOOP("bitcoin-core", "Error: Disk space is low!"),
QT_TRANSLATE_NOOP("bitcoin-core", "Failed to listen on any port. Use -listen=0 if you want this."),
QT_TRANSLATE_NOOP("bitcoin-core", "Fee (in %s/kB) to add to transactions you send (default: %s)"),
QT_TRANSLATE_NOOP("bitcoin-core", "How many blocks to check at startup (default: %u, 0 = all)"),
QT_TRANSLATE_NOOP("bitcoin-core", "Importing..."),
QT_TRANSLATE_NOOP("bitcoin-core", "Imports blocks from external blk000??.dat file on startup"),
QT_TRANSLATE_NOOP("bitcoin-core", "Include IP addresses in debug output (default: %u)"),
QT_TRANSLATE_NOOP("bitcoin-core", "Incorrect or no genesis block found. Wrong datadir for network?"),
QT_TRANSLATE_NOOP("bitcoin-core", "Information"),
QT_TRANSLATE_NOOP("bitcoin-core", "Initialization sanity check failed. %s is shutting down."),
QT_TRANSLATE_NOOP("bitcoin-core", "Insufficient funds"),
QT_TRANSLATE_NOOP("bitcoin-core", "Invalid -onion address: '%s'"),
QT_TRANSLATE_NOOP("bitcoin-core", "Invalid -proxy address: '%s'"),
QT_TRANSLATE_NOOP("bitcoin-core", "Invalid amount for -%s=<amount>: '%s'"),
QT_TRANSLATE_NOOP("bitcoin-core", "Invalid amount for -fallbackfee=<amount>: '%s'"),
QT_TRANSLATE_NOOP("bitcoin-core", "Invalid amount for -paytxfee=<amount>: '%s' (must be at least %s)"),
QT_TRANSLATE_NOOP("bitcoin-core", "Invalid netmask specified in -whitelist: '%s'"),
QT_TRANSLATE_NOOP("bitcoin-core", "Keep at most <n> unconnectable transactions in memory (default: %u)"),
QT_TRANSLATE_NOOP("bitcoin-core", "Keep the transaction memory pool below <n> megabytes (default: %u)"),
QT_TRANSLATE_NOOP("bitcoin-core", "Keypool ran out, please call keypoolrefill first"),
QT_TRANSLATE_NOOP("bitcoin-core", "Listen for JSON-RPC connections on <port> (default: %u or testnet: %u)"),