[gdal] fix gdal_merge (from G. Sucameli)

git-svn-id: http://sextante.googlecode.com/svn/trunk/soft/bindings/qgis-plugin@93 881b9c09-3ef8-f3c2-ec3d-21d735c97f4d

Author: julien.malik@gmail.com

src/sextante/gdal/merge.py

@@ -28,9 +28,9 @@ def defineCharacteristics(self):
 
     def processAlgorithm(self, progress):
         if SextanteUtils.isWindows():
-            commands = ["cmd.exe", "/C ", "merge.bat"]
+            commands = ["cmd.exe", "/C ", "gdal_merge.bat"]
         else:
-            commands = ["merge.py"]
+            commands = ["gdal_merge.py"]
         if self.getParameterValue(merge.SEPARATE):
             commands.append("-separate")
         if self.getParameterValue(merge.PCT):