fix typo

shyouhei · shyouhei · commit 514b73a99142 · 2020-03-30T16:02:18.000+09:00
diff --git a/include/ruby/3/core/rdata.h b/include/ruby/3/core/rdata.h
@@ -103,7 +103,7 @@ RUBY3_SYMBOL_EXPORT_END()
             mark,            \
             free,            \
             sval);           \
-        data_struct_obj      \
+        data_struct_obj;     \
     })
 #else
 #define Data_Make_Struct(klass, type, mark, free, sval) \
