[O] Typo in doc string of org-small-year-to-year

[Nick Dokos]

The doc string of org-small-year-to-year says:

,----
| Convert 2-digit years into 4-digit years.
| 38-99 are mapped into 1938-1999.  1-37 are mapped into 2001-2007.
`----

That 2007 should be 2037.

--
Nick