pxpcap: Improve test program
pxpcap: Improve test program

You can now select the interface with the --interface= argument.
You can specify either a name or #<number>.
Prints a list of interfaces when it runs.

carlye566/IoT-POX,diogommartins/pox,chenyuntc/pox,andiwundsam/_of_normalize,jacobq/csci5221-viro-project,adusia/pox,VamsikrishnaNallabothu/pox,kulawczukmarcin/mypox,MurphyMc/pox,diogommartins/pox,MurphyMc/pox,carlye566/IoT-POX,pthien92/sdn,andiwundsam/_of_normalize,diogommartins/pox,chenyuntc/pox,pthien92/sdn,VamsikrishnaNallabothu/pox,PrincetonUniversity/pox,noxrepo/pox,adusia/pox,chenyuntc/pox,jacobq/csci5221-viro-project,chenyuntc/pox,pthien92/sdn,waltznetworks/pox,pthien92/sdn,andiwundsam/_of_normalize,adusia/pox,kpengboy/pox-exercise,kpengboy/pox-exercise,xAKLx/pox,kulawczukmarcin/mypox,xAKLx/pox,noxrepo/pox,denovogroup/pox,xAKLx/pox,xAKLx/pox,kpengboy/pox-exercise,adusia/pox,MurphyMc/pox,kpengboy/pox-exercise,MurphyMc/pox,jacobq/csci5221-viro-project,diogommartins/pox,noxrepo/pox,carlye566/IoT-POX,chenyuntc/pox,jacobq/csci5221-viro-project,waltznetworks/pox,carlye566/IoT-POX,kpengboy/pox-exercise,waltznetworks/pox,pthien92/sdn,denovogroup/pox,PrincetonUniversity/pox,xAKLx/pox,PrincetonUniversity/pox,adusia/pox,kavitshah8/SDNDeveloper,jacobq/csci5221-viro-project,denovogroup/pox,waltznetworks/pox,denovogroup/pox,kulawczukmarcin/mypox,waltznetworks/pox,kulawczukmarcin/mypox,MurphyMc/pox,PrincetonUniversity/pox,noxrepo/pox,VamsikrishnaNallabothu/pox,kulawczukmarcin/mypox,VamsikrishnaNallabothu/pox,kavitshah8/SDNDeveloper,VamsikrishnaNallabothu/pox,denovogroup/pox,carlye566/IoT-POX,andiwundsam/_of_normalize,PrincetonUniversity/pox,kavitshah8/SDNDeveloper,kavitshah8/SDNDeveloper,diogommartins/pox