Fixing field name used for target field in ftools DistanceMatrix algorithm

Author: ccrook

python/plugins/processing/algs/qgis/ftools/PointDistance.py

@@ -113,7 +113,7 @@ def linearMatrix(self, inLayer, inField, targetLayer, targetField,
         index = vector.spatialindex(targetLayer)
 
         inIdx = inLayer.fieldNameIndex(inField)
-        outIdx = targetLayer.fieldNameIndex(inField)
+        outIdx = targetLayer.fieldNameIndex(targetField)
 
         outFeat = QgsFeature()
         inGeom = QgsGeometry()