When a command fails, I'd like to know what it was.

hotness/buildsys.py

@@ -71,7 +71,7 @@ def run(self, cmd, cwd=None):
         if err:
             self.log.warning(err)
         if p.returncode != 0:
-            self.log.error('return code %s', p.returncode)
+            self.log.error('return code %s, %r', p.returncode, cmd)
             raise Exception
         return out