More specific catch clause

Author: jonashaag

tests/test_pysoundfile.py

@@ -765,7 +765,7 @@ def target():
         for _ in range(n_trials_per_thread):
             try:
                 sf.SoundFile(file_inmemory)
-            except Exception as e:
+            except sf.LibsndfileError:
                 n_reported_errors += 1
 
     threads = [threading.Thread(target=target) for _ in range(n_threads)]