fixed bug detecting SAGA installed in linux

git-svn-id: http://sextante.googlecode.com/svn/trunk/soft/bindings/qgis-plugin@102 881b9c09-3ef8-f3c2-ec3d-21d735c97f4d

Author: volayaf

src/sextante/saga/SagaAlgorithm.py

@@ -289,7 +289,7 @@ def checkBeforeOpeningParametersDialog(self):
             command = ["saga_cmd"]
             proc = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE,stderr=subprocess.STDOUT, universal_newlines=True).stdout
             for line in iter(proc.readline, ""):
-                if "-------------" in line:
+                if "________" in line:
                     settings.setValue(SAGA_INSTALLED, True)
                     return
             return "It seems that SAGA is not correctly installed in your system.\nPlease install it before running SAGA algorithms."