mod_dav: Fix a problem that could cause crashes when manipulating

locks on some platforms.

crashes seen on Sparc when the integer copied out of the database
was not aligned properly

also, sizeof(int) not necessarily sizeof(apr_size_t), so that could
be a concern; we copy in sizeof(apr_size_t field) so we should copy
out sizeof(apr_size_t field)


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@103027 13f79535-47bb-0310-9956-ffa450edef68