Update pddm to work with clang-format
Add clang-format off/on directives around pddm expansions to simplify formatting other code.
diff --git a/objectivec/GPBArray.h b/objectivec/GPBArray.h
index 3d22cb8..5aea75c 100644
--- a/objectivec/GPBArray.h
+++ b/objectivec/GPBArray.h
@@ -36,6 +36,7 @@
//%PDDM-EXPAND DECLARE_ARRAYS()
// This block of code is generated, do not edit it directly.
+// clang-format off
#pragma mark - Int32
@@ -1535,6 +1536,7 @@
@end
+// clang-format on
//%PDDM-EXPAND-END DECLARE_ARRAYS()
NS_ASSUME_NONNULL_END
