debug-viewer: Python3 port follow-up

One print statement wasn't ported to Python3.

diff --git a/debug-viewer/gst-debug-viewer b/debug-viewer/gst-debug-viewer
index 25bd850..648a498 100755 (executable)
--- a/debug-viewer/gst-debug-viewer
+++ b/debug-viewer/gst-debug-viewer
@@ -52,7 +52,7 @@ def main ():
     try:
         import GstDebugViewer
     except ImportError as exc:
-        print >> sys.stderr, str (exc)
+        print(str (exc), file=sys.stderr)
         sys.exit (1)
     else:
         if installed: