tests: Fix a minor bug in fixture.py

debug is a part of test_log object.

Signed-off-by: Ayaz Akram <yazakram@ucdavis.edu>
Change-Id: I56d950483c1d86b76b4f652741d2323c1b078e3e
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/19768
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Tested-by: kokoro <noreply+kokoro@google.com>
diff --git a/tests/gem5/fixture.py b/tests/gem5/fixture.py
index d39296e..21ea3d8 100644
--- a/tests/gem5/fixture.py
+++ b/tests/gem5/fixture.py
@@ -321,7 +321,8 @@
                 t = self._getremotetime()
             except urllib2.URLError:
                 # Problem checking the server, use the old files.
-                log.test_log.debug("Could not contact server. Binaries may be old.")
+                log.test_log.debug("Could not contact server. "
+                                   "Binaries may be old.")
                 return
             # If the server version is more recent, download it
             if t > os.path.getmtime(self.filename):