normalize_path for otb install dir

otb/OTBAlgorithmProvider.py

@@ -125,7 +125,7 @@ class OTBAlgorithmProvider(QgsProcessingProvider):
             raise ValueError(self.tr("Cannot find '{}'. OTB will be disabled".format(os.path.join(v,'bin', otb_exe_file('otbApplicationLauncherCommandLine')))))
 
     def write_otbcli_wrapper_script(self):
-        otb_folder = OTBUtils.appFolder()
+        otb_folder = self.normailize_path(OTBUtils.appFolder())
         otb_app_path_env = os.pathsep.join(self.otb_app_dir_list(OTBUtils.appFolder()))
         gdal_data_dir = None
         geotiff_csv_dir = None