Fix copy/paste error

Author: nyalldawson

python/plugins/processing/algs/qgis/AutoincrementalField.py

@@ -75,7 +75,7 @@ def processAlgorithm(self, parameters, context, feedback):
                                                fields, source.wkbType(), source.sourceCrs())
 
         features = source.getFeatures()
-        total = total = 100.0 / source.featureCount() if source.featureCount() else 0
+        total = 100.0 / source.featureCount() if source.featureCount() else 0
         for current, input_feature in enumerate(features):
             if feedback.isCanceled():
                 break