Interface name problem when build a new vserver

Hi,

I noticed a problem with the name of the virtual network interface in 
the style 'enp1s0: 1' as:

/usr/lib/util-vserver/vserver-build -n vserver \
     --initstyle sysv --interface 'enp1s0:2':51.158.25.140/24 \
     -m debootstrap -- -d stretch

this returns an error message and stops building the guest, we have to use:

/usr/lib/util-vserver/vserver-build -n vserver \
     --initstyle sysv --interface eth0:51.158.25.140/24 \
     -m debootstrap -- -d stretch

And then change the name interface by and in 
/etc/vservers/<vserver>/interfaces

Sam.