* bignum.c (rb_integer_pack): Renamed from rb_int_export.
  (rb_integer_unpack): Renamed from rb_int_import.

* internal.h, pack.c: Follow the above change.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41147 b2dd03c8-39d4-4d8f-98ff-823fe69b080e