Parse day number padded with spaces (from C macro __DATE__)

[Glandos]

As explained in https://gcc.gnu.org/onlinedocs/cpp/Standard-Predefined-Macros.html the __DATE__ macro will output date with space padding for day number. This seems to be a unique behavior among date generation, but it's still here after decades.
Is there a way to achieve parsing such dates with date-fns?

[Glandos]

For now, I will use parse(dateString.replace('  ', ' '), …). This will replace the double space with a single one…