Use numeric comparison in sort for $displaynum (#2952)
Use numeric comparison in sort for $displaynum (#2952)

Eg in the case of sockets:
- X0
- X99
- X100

X99 would be picked instead of X100.
Airblader/i3,cornerman/i3,i3/i3,stapelberg/i3,Airblader/i3,cornerman/i3,i3/i3,Airblader/i3-original,Airblader/i3,i3/i3,stapelberg/i3,i3/i3,cornerman/i3,stapelberg/i3,stapelberg/i3,Airblader/i3,Airblader/i3-original,Airblader/i3-original,cornerman/i3,Airblader/i3-original,Airblader/i3-original