[tracker] (20 commits) ...Merge branch 'wip/carlosg/coverity-warnings' into 'master'

[Carlos Garnacho <carlosg src gnome org>]

Summary of changes:

  06f5d57... libtracker-common: Fix coverity warning (*)
  ee6127f... portal: Fix double error free (*)
  aa3caa5... portal: Fix GStrv declaration (*)
  2d0c0cb... libtracker-data: Add paranoia check in condition (*)
  7ab71bc... libtracker-data: Use the right free function on variable (*)
  954ca42... libtracker-data: Free variable using the right free functio (*)
  11ad71a... tests: Plug leaks (*)
  ca94f1d... libtracker-sparql: Minor code refactor (*)
  2e5ccd8... tracker: Plug leak in "tracker help" subcommand (*)
  3294c0c... libtracker-data: Plug leak (*)
  c78a0f7... libtracker-data: Plug leak (*)
  4b20a14... libtracker-sparql: Plug leak (*)
  19ce818... libtracker-data: Plug leak (*)
  45b44b9... libtracker-sparql: Plug leak on API misuse (*)
  143f1bb... libtracker-data: Plug leak (*)
  6653d16... portal: "Plug" leak (*)
  dc380b2... libtracker-data: Explicitly check for return value (*)
  7b85fb9... libtracker-data: Reorder unref call (*)
  4dfe849... libtracker-fts: Plug leak (*)
  36718a2... Merge branch 'wip/carlosg/coverity-warnings' into 'master'

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