pad: fix a code comment
pad: fix a code comment

Motiejus/sox,Motiejus/sox,mhartzel/sox_personal_fork,CaptainHayashi/sox,mhartzel/sox_personal_fork,cbagwell/sox,MageSlayer/sox,Motiejus/sox,mhartzel/sox_personal_fork,MageSlayer/sox,uklauer/sox,MageSlayer/sox,Motiejus/sox,uklauer/sox,pcqpcq/sox,MageSlayer/sox,cbagwell/sox,CaptainHayashi/sox,pcqpcq/sox,cbagwell/sox,CaptainHayashi/sox,CaptainHayashi/sox,uklauer/sox,MageSlayer/sox,pcqpcq/sox,pcqpcq/sox,cbagwell/sox,mhartzel/sox_personal_fork,uklauer/sox