Fix bug of unmount target. (Clt template)

Added call closeFiles for object of cltTemplate.

pym/cl_install.py

@@ -943,6 +943,13 @@ class cl_install(color_print):
                 target.multipartition=objMultiPartitions
             return target
 
+    def closeClTemplate(self):
+        if self.clTempl:
+            if self.clTempl.cltObj:
+                self.clTempl.cltObj.closeFiles()
+            self.clTempl.closeFiles()
+            self.clTempl = None
+
     def applyTemplates(self,directory):
         """Apply templates for root of system."""
         #self.clVars.Set("cl_root_path",directory, True)
@@ -1837,8 +1844,7 @@ the system") + " (yes/no)"
         if error:
             self.printByResult(False)
         try:
-            if self.clTempl:
-                self.clTempl.closeFiles()
+            self.closeClTemplate()
             if sourceDistr:
                 self.printMessageForTest(_("Releasing source distributive"))
                 sourceDistr.close()