[tracker-miners] (12 commits) ...Merge branch 'wip/carlosg/coverity-fixes' into 'master'

[Carlos Garnacho <carlosg src gnome org>]

Summary of changes:

  f148d2d... tracker-extract: Initialize variable properly (*)
  b162547... tracker-writeback: Fix typo in code (*)
  9fe4e6f... tracker-miner-rss: Check for a NULL domain ontology (*)
  1d3df10... tracker-miner-fs: Remove needless check (*)
  f8bc2dd... tracker-miner-rss: Remove needless check (*)
  ffb65b7... tracker-writeback: Ensure keywords string is initialized be (*)
  2aac13a... tracker: Avoid possible buffer overrun in CLI process helpe (*)
  bd38584... tests: Silence check (*)
  4407ec3... tracker: Check tracker_sparql_cursor_next() return value. (*)
  04791ac... tests: Check g_remove() call return value (*)
  83fdc0b... libtracker-miners-common: Check g_remove() return value (*)
  ffe01f7... Merge branch 'wip/carlosg/coverity-fixes' into 'master'

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