fix(common): Fix dumb typo in bash alternate-value expansion
fix(common): Fix dumb typo in bash alternate-value expansion

Missing a :
Perhaps I'm getting to clever with my shell for my own good.

glevand/coreos--scripts,mischief/scripts,vmware/coreos-scripts,crawford/scripts,mischief/scripts,marineam/coreos-scripts,gtank/scripts,endocode/scripts,andrejro/coreos--scripts,marineam/coreos-scripts,andrejro/coreos--scripts,sigma/coreos-scripts,sigma/coreos-scripts,bcwaldon/coreos-scripts,coreos/scripts,coreos/scripts,vmware/coreos-scripts,zhang0137/scripts,marineam/coreos-scripts,nicescale/scripts,endocode/scripts,bcwaldon/coreos-scripts,nicescale/scripts,mjg59/scripts,glevand/coreos--scripts,smilart/scripts,fivethreeo/scripts,fivethreeo/scripts,mischief/scripts,fivethreeo/scripts,BugRoger/scripts,crawford/scripts,smilart/scripts,BugRoger/scripts,BugRoger/scripts,endocode/scripts,vmware/coreos-scripts,trnubo/scripts,andrejro/coreos--scripts,bcwaldon/coreos-scripts,smilart/scripts,zhang0137/scripts,nicescale/scripts,trnubo/scripts,gtank/scripts,zhang0137/scripts,sigma/coreos-scripts,trnubo/scripts,gtank/scripts,mjg59/scripts,mjg59/scripts,crawford/scripts