- re-order and update patches to sync with upstream.
    - located missing patch.
    - replaced couple of patches previously altered due to incorrect ordering.
    - add patches for upstream issues - synced with 5.0.3.
    - fix incorrect read/write size of startup status token (Matthias Koenig).
    - fix off-by-one error for lookup of map keys exactly 255 characters long.
    - improve handling of server not available.
    - fix LDAP_URI server selection.
    - add authentication option for using an external credential cache.
    - expand support for the "%" hack.
    - fix to quoting for exports gathered by hosts map.
    - use mount option "nosuid" for "-hosts" map unless "suid" is explicily
        specified.
    - second attempt fixing quoting for exports gathered by hosts map.
    - quell annoying "cannot open mount module" message.
    - fix for improve handling of server not available.
    - use mount option "nodev" for "-hosts" map unless "dev" is explicily
        specified.
    - add LDAP paged query handling to deal with query size restrictions
        (Edward Newman).
    - add additional case for "mark map instances stale so they aren't
        "cleaned" during updates".
    - fix race during sub-mount shutdown.
    - fix add SEARCH_BASE configuration option.
    - add patches for upstream issues - post 5.0.3.
    - correct configure test for ldapr page control functions.
    - catch "-xfn" map type and issue "no supported" message.
    - correction for handling of LDAP base dns with spaces.
    - avoid using UDP for probing NFSv4 mount requests.
    - use libldap instead of libldap_r (Guillaume Rousse).
    - another fix for don't fail on empty master map.
    - fix expire working harder than needed.
    - fix unlink of mount tree incorrectly causing autofs mount fail.