Core - Fix error return type for processRadioSpeaker (#1392)

sys_core - Fix error return type for `processRadioSpeaker`

Author: PabstMirror

addons/sys_core/fnc_processRadioSpeaker.sqf

@@ -26,11 +26,11 @@ params ["_unit","_playerRadios"];
 TRACE_2("",_unit,_playerRadios);
 
 private _radioId = _unit getVariable [QGVAR(currentSpeakingRadio), ""];
-if (_radioId == "") exitWith { false };
+if (_radioId == "") exitWith { [] };
 
 // Workaround #638 - _radioId is nil - TODO investigate further
 // Probable source: https://github.com/IDI-Systems/acre2/blob/c03262be2190cd54c3cb5f27d7ca3eddf7270506/addons/sys_core/fnc_remoteStartSpeaking.sqf#L107
-if (isNil "_radioId") exitWith { false };
+if (isNil "_radioId") exitWith { [] };
 
 // @todo if Underwater Radios are implemented
 //if (ACRE_LISTENER_DIVE == 1) exitWith { false };