libc: add strerrordesc_np

Per the specification, strerrordesc_np() is supposed to
return a pointer to a string that describes the error code
passed in the argument errnum just like strerror() does.
However unlike strerror(), strerrordesc_np() is NOT supposed
to apply any translation per current locale.

But the OSv implementation of strerror() does not apply any
translation anyway (please see the LCTRANS macro in locale_impl.h
that returns the msg "as is" without any translation). So given
that we simply make strerrordesc_np an alias of strerror.

The strerrordesc_np() is needed by newer version of nginx.

Signed-off-by: Waldemar Kozaczuk <[email protected]>
Message-Id: <[email protected]>

libc/aliases.ld

@@ -48,6 +48,7 @@ __strndup = strndup;
 __stpcpy = stpcpy;
 __stpncpy = stpncpy;
 __strdup = strdup;
+strerrordesc_np = strerror;
 
 /* temp */
 __mktemp = mktemp;