cruft_report: Fix syntax error

diff --git a/dak/cruft_report.py b/dak/cruft_report.py
index 3c3d73cb8c5dbb58038f807b7d19f84d823fa574..b2b5836e70f29c743b3fb5401c083c282da0185d 100755 (executable)
--- a/dak/cruft_report.py
+++ b/dak/cruft_report.py
@@ -168,7 +168,7 @@ def parse_nfu(architecture):
 
         f.close()
     else:
-        utils.warn("No wanna-build dump file for architecture %s", architecture)
+        utils.warn("No wanna-build dump file for architecture %s" % architecture)
     return ret
 
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