fix error message in merge algorithm

LOMENEDE Jean-Daniel · LOMENEDE Jean-Daniel · commit dea558b8241f · 2017-05-02T13:39:22.000+02:00
diff --git a/python/plugins/processing/algs/qgis/Merge.py b/python/plugins/processing/algs/qgis/Merge.py
@@ -89,7 +89,7 @@ def processAlgorithm(self, context, feedback):
                         if (dfield.type() != sfield.type()):
                             raise GeoAlgorithmExecutionException(
                                 self.tr('{} field in layer {} has different '
-                                        'data type than in other layers.'))
+                                        'data type than in other layers.'.format(sfield.name(), layerSource)))
 
                 if not found:
                     fields.append(sfield)
