[libvirt] [test-API][PATCH] Fix a typo xml_file_path

[hongming]

Change the undefined variable "xml_file_path" to "file_path"
---
 src/testcasexml.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/testcasexml.py b/src/testcasexml.py
index 8485d3d..4cbdc03 100644
--- a/src/testcasexml.py
+++ b/src/testcasexml.py
@@ -31,7 +31,7 @@ def xml_file_to_str(proxy_obj, mod_case, case_params):
         text = fh.read()
         fh.close()
     else:
-        raise exception.FileDoesNotExist("xml file %s doesn't exist" % xml_file_path)
+        raise exception.FileDoesNotExist("xml file %s doesn't exist" % file_path)
 
     # replace the params that in testcase.conf first
     for (key, value) in case_params.items():
-- 
1.7.7.6