[tracker-miners] Non-fast-forward update to branch sam/tracker-index-gwarning

[Sam Thursfield <sthursfield src gnome org>]

The branch 'sam/tracker-index-gwarning' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  21c6d81... Revert "tracker-miner-fs: Use g_file_info_get_modification_
  56c1627... cli: Use g_warning() instead of g_print() for error

Commits added to the branch:

  923c6ee... cli: Use g_warning() instead of g_print() for error