paycheck: fixed an undefined variable bug

BUG=None
TEST=It is running now

Change-Id: I7ed7c17811700f34e7556bac89182db6b8e29992
Reviewed-on: https://gerrit.chromium.org/gerrit/50392
Reviewed-by: Chris Sosa <sosa@chromium.org>
Commit-Queue: Gilad Arnold <garnold@chromium.org>
Reviewed-by: Gilad Arnold <garnold@chromium.org>
Tested-by: Gilad Arnold <garnold@chromium.org>
diff --git a/scripts/paycheck.py b/scripts/paycheck.py
index 897c859..3e10401 100755
--- a/scripts/paycheck.py
+++ b/scripts/paycheck.py
@@ -178,8 +178,9 @@
             else:
               report_file = open(options.report, 'w')
               do_close_report_file = True
-              metadata_sig_file = (
-                  open(options.meta_sig) if options.meta_sig else None)
+
+          metadata_sig_file = (
+              open(options.meta_sig) if options.meta_sig else None)
           payload.Check(
               pubkey_file_name=options.key,
               metadata_sig_file=metadata_sig_file,