(The "symbol" is currently only created by some inofficial scripts,
but may become part of the Fail* core at some point.)
Change-Id: If0b3e6cdd6b6ca865abb67382de128e7a27f19ab
This script removes dangling rows from the database, for example
'trace' entries with a variant_id not mentioned in the 'variants'
table, or result rows referencing a nonexistent 'fsppilot' entry.
IOW, this script enforces referential integrity as it would be
maintained by foreign key constraints (that can only be used with
InnoDB tables).
Change-Id: I4dce1e46277d470f8c3eca31447ca71f63c6353f
