Mark -init as designated initializer in SFBMutableDataOutputSource (#647)

sbooth · web-flow · commit 194845e7d7da · 2025-11-30T10:41:01.000-06:00
diff --git a/Sources/CSFBAudioEngine/Output/SFBMutableDataOutputSource.h b/Sources/CSFBAudioEngine/Output/SFBMutableDataOutputSource.h
@@ -9,6 +9,7 @@
 NS_ASSUME_NONNULL_BEGIN
 
 @interface SFBMutableDataOutputSource : SFBOutputSource
+- (instancetype)init NS_DESIGNATED_INITIALIZER;
 - (instancetype)initWithURL:(nullable NSURL *)url NS_UNAVAILABLE;
 @end
 
