wireguard-go: update 0.0.20180514 bottle for Linuxbrew.
wireguard-go: update 0.0.20180514 bottle for Linuxbrew.

LinuxbrewTestBot/homebrew-core,LinuxbrewTestBot/homebrew-core,Linuxbrew/homebrew-core,rwhogg/homebrew-core,rwhogg/homebrew-core,Linuxbrew/homebrew-core,maxim-belkin/homebrew-core,maxim-belkin/homebrew-core