tc-testing: Add newline when writing test case files

When using the -i feature to generate random ID numbers for test
cases in tdc, the function that writes the JSON to file doesn't
add a newline character to the end of the file, so we have to
add our own.

Signed-off-by: Lucas Bates <lucasb@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/tools/testing/selftests/tc-testing/tdc.py b/tools/testing/selftests/tc-testing/tdc.py
index 44de4a2..87a04a8 100755 (executable)
--- a/tools/testing/selftests/tc-testing/tdc.py
+++ b/tools/testing/selftests/tc-testing/tdc.py
@@ -490,6 +490,7 @@ def generate_case_ids(alltests):
                     testlist.append(t)
         outfile = open(f, "w")
         json.dump(testlist, outfile, indent=4)
+        outfile.write("\n")
         outfile.close()
 
 def filter_tests_by_id(args, testlist):