[processing] fix method signature

alexbruy · nyalldawson · commit 33cfed2e068d · 2018-05-11T15:49:06.000+10:00
diff --git a/python/plugins/processing/gui/enummodelerwidget.py b/python/plugins/processing/gui/enummodelerwidget.py
@@ -110,5 +110,5 @@ def setDefault(self, index):
         if item:
             item.setCheckState(Qt.Checked)
 
-    def setAllowMultiple(self):
-        self.chkAllowMultiple.setChecked(True)
+    def setAllowMultiple(self, allowMultiple):
+        self.chkAllowMultiple.setChecked(allowMultiple)
