Codemod CLI: Print diff only when there is a change (#945)

Otherwise lots of empty lines are printed.
Instagram · Jun 7, 2023 · 203a2f5 · 203a2f5
1 parent 5eec991
commit 203a2f5
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/libcst/codemod/_cli.py b/libcst/codemod/_cli.py
@@ -473,7 +473,7 @@ def _print_parallel_result(
             )
 
         # In unified diff mode, the code is a diff we must print.
-        if unified_diff:
+        if unified_diff and result.code:
             print(result.code)