K 10
svn:author
V 3
mux
K 8
svn:date
V 27
2004-06-05T11:39:05.000000Z
K 7
svn:log
V 310
When we don't have any meaningful value to print for the device sysctl
tree, output an empty string instead of "?".  This is already what
happened with DEVICE_SYSCTL_LOCATION and DEVICE_SYSCTL_PNPINFO.  This
makes the output of "sysctl dev" much nicer (it won't display those
empty sysctls).

Reviewed by:	des

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