- Add support for db48 (with WITH_BDB=t and WITH_BDB_VER=48) by
updating patch to dbm.m4. Old patch for dbm.m4 is for db47. But
recent apache dist already includes code block for db47, so update a
patch by replacing it to db48.
- No $PORTREVISION bump (no effect to packages with default options).
Submitted by: ume