swift language error when running CD

* CD encountered:
error: consecutive statements on a line must be separated by ';'

* pointing at `return if primaryAliasLabel == .external_id { externalId } else { onesignalId }`

iOS_SDK/OneSignalSDK/OneSignalUser/Source/OSIdentityModel.swift

@@ -43,7 +43,11 @@ class OSIdentityModel: OSModel {
      */
     var primaryAliasLabel: OSDefaultAlias = .onesignal_id
     var primaryAliasId: String? {
-        return if primaryAliasLabel == .external_id { externalId } else { onesignalId }
+        if primaryAliasLabel == .external_id {
+            return externalId
+        } else {
+            return onesignalId
+        }
     }
 
     var onesignalId: String? {