libcurl-errors(3) on macOS

The text eebfab2922a7, as Mac OS X 10.8.5, Mac OS X 10.8.4, Mac OS X 10.8.3, Mac OS X 10.8.2, Mac OS X 10.8.1, Mac OS X 10.8 shipped it.

error codes in libcurl

libcurl-errors(3) on macOS now