Document hspace's SPN parameters
Document hspace's SPN parameters

With the introduction of spindles as resources, the machine-readable
output of hspace(1) has been extended. Document the additional parameters.

Signed-off-by: Klaus Aehlig <4ce51de36d9068cd7db2eec1151e0f3f95419008@google.com>
Reviewed-by: Jose Lopes <0fb9c4f8511df4ec2ae28af879e9d462f6218a2c@google.com>

yiannist/ganeti,leshchevds/ganeti,yiannist/ganeti,leshchevds/ganeti,bitemyapp/ganeti,ganeti/ganeti,onponomarev/ganeti,andir/ganeti,apyrgio/ganeti,apyrgio/snf-ganeti,apyrgio/snf-ganeti,apyrgio/ganeti,mbakke/ganeti,dimara/ganeti,bitemyapp/ganeti,ganeti-github-testing/ganeti-test-1,ganeti/ganeti,ganeti-github-testing/ganeti-test-1,yiannist/ganeti,leshchevds/ganeti,ganeti/ganeti,grnet/snf-ganeti,grnet/snf-ganeti,andir/ganeti,andir/ganeti,dimara/ganeti,mbakke/ganeti,mbakke/ganeti,onponomarev/ganeti