Comment 1 for bug 334537

This looks like the Solvak language has removed a format string (%s) from one of the:
          return ngettext("The package information was last updated %s day ago.",
                          "The package information was last updated %s days ago.",
                          ago_days) % ago_days
      elif ago_hours > 0:
          return ngettext("The package information was last updated %s hour ago.",
                          "The package information was last updated %s hours ago.",
                          ago_hours) % ago_hours
strings. I reassign.