Fix broken javadoc generation for repeated enum values

src/google/protobuf/compiler/java/java_enum_field.cc

@@ -656,7 +656,7 @@ void RepeatedImmutableEnumFieldGenerator::GenerateMembers(
       "      java.lang.Integer, $type$>($name$_, $name$_converter_);\n"
       "}\n");
   printer->Annotate("{", "}", descriptor_);
-  WriteFieldAccessorDocComment(printer, descriptor_, LIST_ADDER);
+  WriteFieldAccessorDocComment(printer, descriptor_, LIST_COUNT);
   printer->Print(
       variables_,
       "$deprecation$public int ${$get$capitalized_name$Count$}$() {\n"