RUBY_RELEASE_DAY   23 version.h      #if ONLY_ONE_DIGIT(RUBY_RELEASE_DAY)
RUBY_RELEASE_DAY   24 version.h      #define RUBY_RELEASE_DAY_STR STRINGIZE(WITH_ZERO_PADDING(RUBY_RELEASE_DAY))
RUBY_RELEASE_DAY   26 version.h      #define RUBY_RELEASE_DAY_STR STRINGIZE(RUBY_RELEASE_DAY)