API UnitIsPVP

Returns true if the unit is flagged for PVP.
 ispvp = UnitIsPVP(unit)
----
;Arguments
:;unit (UnitID):the unit name (e.g., "target")
----
;Returns
:;ispvp:1 if the unit is flagged for PvP, nil otherwise.
----
;Example
 if (UnitIsPVP("target")) then
 -- Target is flagged for PvP
 end