If there's no da, don't insert it into the hash table
Output debug when inserting suppressed attributes into the hash table
More minor fixes (From aland)
Should fail if attribute doesn't exist...
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Walk the main packet list, not the proxy one

When we're closing inbound non-proxy TCP sockets
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Build warnings WITHOUT_UNLANG
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Report a non-zero exit status if after forking, the child encounters an error during the rest of server initialisation

Tests to follow
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