Following bug 82311, if a source file contains something like: keyboard:usb:v05ACp0221* KEYBOARD_KEY_70035=102nd "udevadm hwdb --update" reports no errors, but ignores the KEYBOARD_KEY_70035=102nd setting because it starts with 2 spaces instead of a single one. udevadm should not silently ignore invalid code, but either report an error or accept it as valid code.
This should be fixed: http://cgit.freedesktop.org/systemd/systemd/commit/?id=36afca67b67984520c5c9a6ce14af51a68c7c8cf
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