[tracker] (8 commits) ...Merge branch 'wip/carlosg/coverity-fixes' into 'master'

[Carlos Garnacho <carlosg src gnome org>]

Summary of changes:

  574b2ce... tests: Silence check (*)
  2a6c761... libtracker-data: Ensure there is an error on all failure pa (*)
  d575d16... docs: Avoid dead expression in code example (*)
  87e189d... docs: Avoid dead expressions in code examples (*)
  f8282a2... docs: Avoid dead expressions in code examples (*)
  ba0579a... libtracker-fts: Check sqlite3_exec() return value (*)
  d758f78... libtracker-data: Remove no-op function (*)
  1f7a6af... Merge branch 'wip/carlosg/coverity-fixes' into 'master'

(*) This commit already existed in another branch; no separate mail sent