fix some typos

[matkoniecz]

Run python3 -m pylint nominatim
************* Module nominatim.tools.convert_sqlite
nominatim/tools/convert_sqlite.py:143:16: W0101: Unreachable code (unreachable)
************* Module nominatim.tokenizer.icu_rule_loader
nominatim/tokenizer/icu_rule_loader.py:59:8: W0101: Unreachable code (unreachable)
nominatim/tokenizer/icu_rule_loader.py:168:8: W0101: Unreachable code (unreachable)
nominatim/tokenizer/icu_rule_loader.py:183:8: W0101: Unreachable code (unreachable)

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Your code has been rated at 10.00/10

fail seems unrelated

[lonvia]

Merged manually in e51973f. Thank you.