Catch pexpect timeout exception for onosDiagnostics

Change-Id: If4753287c97f68576d1bf58977f20f8451d4b534
diff --git a/TestON/drivers/common/cli/onosdriver.py b/TestON/drivers/common/cli/onosdriver.py
index a666d77..cffc805 100755
--- a/TestON/drivers/common/cli/onosdriver.py
+++ b/TestON/drivers/common/cli/onosdriver.py
@@ -2601,6 +2601,10 @@
         except TypeError:
             main.log.exception( self.name + ": Object not as expected" )
             return main.FALSE
+        except pexpect.TIMEOUT:
+            main.log.exception( self.name + ": TIMEOUT exception found in onosDiagnostics" )
+            main.log.error( self.name + ":    " + self.handle.before )
+            return main.FALSE
         except pexpect.EOF:
             main.log.error( self.name + ": EOF exception found" )
             main.log.error( self.name + ":    " + self.handle.before )