Promotes a player to party/raid leader
See also Party functions, Raid functions.
Signature:
PromoteToLeader("unit") or PromoteToLeader("name" [, exactMatch])
Arguments:
unit- A unit in the party or raid (string, unitID)name- Name of a party member (string)exactMatch- True to check only units whose name exactly matches thenamegiven; false to allow partial matches (boolean)