doc: fix spelling of TYPE_get_ex_new_index
The generated macros are TYPE_get_ex_new_index() (to match
CRYPTO_get_ex_new_index()), not TYPE_get_new_ex_index(), even though
the latter spelling seems more natural.
@@ -53,7 +53,7 @@ L<CRYPTO_get_ex_new_index(3)>.
These functions handle application-specific data for OpenSSL data
structures.
-TYPE_get_new_ex_index() is a macro that calls CRYPTO_get_ex_new_index()
+TYPE_get_ex_new_index() is a macro that calls CRYPTO_get_ex_new_index()
with the correct B<index> value.
TYPE_set_ex_data() is a function that calls CRYPTO_set_ex_data() with
@@ -74,7 +74,7 @@ there are no backward compatibility concerns.
=head1 RETURN VALUES
-TYPE_get_new_ex_index() returns a new index on success or -1 on error.
+TYPE_get_ex_new_index() returns a new index on success or -1 on error.
TYPE_set_ex_data() returns 1 on success or 0 on error.
