.travis.yml: Typo fix in commented-out command
.travis.yml: Typo fix in commented-out command

cdepillabout/lens,omefire/lens,Icelandjack/lens,ddssff/lens,danidiaz/lens,Gabriel439/lens,rpglover64/lens,cchalmers/lens,timjb/lens,hvr/lens,Fuuzetsu/lens,hvr/lens