[llvm-objcopy] Don't use {}; NFC

llvm-svn: 356244

Author: MaskRay

llvm/tools/llvm-objcopy/ELF/Object.h

@@ -107,7 +107,7 @@ class SectionWriter : public SectionVisitor {
   Buffer &Out;
 
 public:
-  virtual ~SectionWriter(){};
+  virtual ~SectionWriter() = default;
 
   void visit(const Section &Sec) override;
   void visit(const OwnedDataSection &Sec) override;