Fix duplicated projects on cluster_nav_projects_diff
Fix duplicated projects on cluster_nav_projects_diff

uniq command line tool removes only adjacent lines. We must "sort"
before using it, otherwise it does nothing

qhanam/Pangor,saltlab/Pangor,saltlab/Pangor,qhanam/Pangor,qhanam/Pangor,saltlab/Pangor,saltlab/Pangor,qhanam/Pangor,qhanam/Pangor,saltlab/Pangor