binutils: Fix test for Linuxbrew
binutils: Fix test for Linuxbrew

binutils is stripped. Fix the error:
nm: /home/sjackman/.linuxbrew/bin/nm: no symbols

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