Setting properties to "" or removing them

[Joe Shaw]

Hey,

I wanted to set some convention for empty properties in the daemon.  I
came across some code which sets block.mount_point and block.fstype to
"" when a filesystem is unmounted.  Do we want to do this or remove the
property altogether.  I'd lean toward removing it, that way you don't
have to check whether a property is NULL or "", but on the flip side you
do need to check if it's NULL before doing something like strcmp().  

Joe


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