Fix functional shell tests in travis
Fix functional shell tests in travis

Hostname in travis contains random numbers meaning that it occasionally may 
contain a PID as well. Thus it must be replaced first.
firebitsbr/powerline,bartvm/powerline,russellb/powerline,magus424/powerline,firebitsbr/powerline,prvnkumar/powerline,xxxhycl2010/powerline,cyrixhero/powerline,russellb/powerline,lukw00/powerline,lukw00/powerline,cyrixhero/powerline,kenrachynski/powerline,magus424/powerline,QuLogic/powerline,S0lll0s/powerline,areteix/powerline,junix/powerline,darac/powerline,EricSB/powerline,bezhermoso/powerline,wfscheper/powerline,bezhermoso/powerline,keelerm84/powerline,magus424/powerline,s0undt3ch/powerline,S0lll0s/powerline,seanfisk/powerline,xfumihiro/powerline,s0undt3ch/powerline,DoctorJellyface/powerline,prvnkumar/powerline,IvanAli/powerline,xfumihiro/powerline,Luffin/powerline,wfscheper/powerline,dragon788/powerline,xxxhycl2010/powerline,Luffin/powerline,kenrachynski/powerline,blindFS/powerline,darac/powerline,lukw00/powerline,junix/powerline,DoctorJellyface/powerline,keelerm84/powerline,prvnkumar/powerline,kenrachynski/powerline,IvanAli/powerline,bezhermoso/powerline,S0lll0s/powerline,cyrixhero/powerline,firebitsbr/powerline,blindFS/powerline,junix/powerline,DoctorJellyface/powerline,xxxhycl2010/powerline,darac/powerline,xfumihiro/powerline,areteix/powerline,s0undt3ch/powerline,bartvm/powerline,areteix/powerline,Liangjianghao/powerline,bartvm/powerline,QuLogic/powerline,IvanAli/powerline,seanfisk/powerline,seanfisk/powerline,wfscheper/powerline,Liangjianghao/powerline,dragon788/powerline,Liangjianghao/powerline,blindFS/powerline,dragon788/powerline,Luffin/powerline,russellb/powerline,QuLogic/powerline,EricSB/powerline,EricSB/powerline