Do not call with sudo vgdisplay if it doesn't exist
Do not call with sudo vgdisplay if it doesn't exist

(cherry picked from commit 5415fe686b8a19e325f7c008989b9a43c3bcd4f1)

juanmont/one,fasrc/one,spirit03/one,fasrc/one,atodorov-storpool/one,spirit03/one,ohamada/one,ggalancs/one,Terradue/one,abelCoronado93/one,juanmont/one,unistra/one,goberle/one,unistra/one,juanmont/one,OpenNebula/one,atodorov-storpool/one,mattthias/one,ohamada/one,ggalancs/one,tuxmea/one,Terradue/one,fasrc/one,OpenNebula/one,alvarosimon/one,tuxmea/one,mattthias/one,baby-gnu/one,atodorov-storpool/one,juanmont/one,goberle/one,cloudweavers/one,hsanjuan/one,abelCoronado93/one,Terradue/one,alvarosimon/one,alvarosimon/one,fasrc/one,cloudweavers/one,baby-gnu/one,dberzano/opennebula-torino,spirit03/one,alvarosimon/one,juanmont/one,abelCoronado93/one,ohamada/one,atodorov-storpool/one,hsanjuan/one,atodorov-storpool/one,tuxmea/one,hsanjuan/one,alvarosimon/one,hsanjuan/one,cloudweavers/one,mattthias/one,abelCoronado93/one,goberle/one,spirit03/one,dberzano/opennebula-torino,Terradue/one,dberzano/opennebula-torino,ohamada/one,tuxmea/one,unistra/one,cloudweavers/one,dberzano/opennebula-torino,mattthias/one,cloudweavers/one,baby-gnu/one,juanmont/one,ggalancs/one,baby-gnu/one,Terradue/one,spirit03/one,baby-gnu/one,ggalancs/one,OpenNebula/one,OpenNebula/one,goberle/one,fasrc/one,ohamada/one,unistra/one,baby-gnu/one,alvarosimon/one,dberzano/opennebula-torino,fasrc/one,hsanjuan/one,ohamada/one,Terradue/one,alvarosimon/one,hsanjuan/one,ggalancs/one,fasrc/one,juanmont/one,OpenNebula/one,abelCoronado93/one,cloudweavers/one,unistra/one,unistra/one,dberzano/opennebula-torino,abelCoronado93/one,OpenNebula/one,unistra/one,atodorov-storpool/one,abelCoronado93/one,baby-gnu/one,goberle/one,ggalancs/one,tuxmea/one,tuxmea/one,spirit03/one,spirit03/one,baby-gnu/one,tuxmea/one,ohamada/one,OpenNebula/one,atodorov-storpool/one,cloudweavers/one,hsanjuan/one,hsanjuan/one,ggalancs/one,Terradue/one,spirit03/one,mattthias/one,juanmont/one,alvarosimon/one,goberle/one,cloudweavers/one,OpenNebula/one,goberle/one,fasrc/one,ohamada/one,dberzano/opennebula-torino,mattthias/one,unistra/one,goberle/one,OpenNebula/one,atodorov-storpool/one,ggalancs/one,mattthias/one,tuxmea/one,Terradue/one,atodorov-storpool/one,abelCoronado93/one,mattthias/one,juanmont/one