Update notes for submitted changes

* Dont run clam if lowmem is set
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* Add white space
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* Only run lpd if lpd.conf is set
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* White space fixup
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* White space fixup and only run exportfs if exports is valid
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* Set the hostname program for backward compat
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* Add support for mdb backend to slapd Dont run sogo on lowmem
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* Support and use mdb for ldap as default
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* Add missing update files
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* Add support for lowmem systems
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* support mysql in /opt
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* Fixup sendmail statistics file