Fix prepublish test on Windows.
Fix prepublish test on Windows.

On my system, it listed the full directory name, not just "."

midniteio/npm,evanlucas/npm,ekmartin/npm,evanlucas/npm,yyx990803/npm,kriskowal/npm,cchamberlain/npm-msys2,yyx990803/npm,thomblake/npm,segrey/npm,yyx990803/npm,lxe/npm,princeofdarkness76/npm,DaveEmmerson/npm,kemitchell/npm,kriskowal/npm,thomblake/npm,ekmartin/npm,midniteio/npm,TimeToogo/npm,rsp/npm,kimshinelove/naver-npm,princeofdarkness76/npm,rsp/npm,chadnickbok/npm,cchamberlain/npm,evocateur/npm,rsp/npm,yibn2008/npm,chadnickbok/npm,yodeyer/npm,misterbyrne/npm,midniteio/npm,haggholm/npm,TimeToogo/npm,evocateur/npm,xalopp/npm,segrey/npm,kemitchell/npm,TimeToogo/npm,ekmartin/npm,cchamberlain/npm,segmentio/npm,princeofdarkness76/npm,cchamberlain/npm-msys2,segmentio/npm,lxe/npm,Volune/npm,kimshinelove/naver-npm,cchamberlain/npm,segment-boneyard/npm,DIREKTSPEED-LTD/npm,chadnickbok/npm,Volune/npm,xalopp/npm,segmentio/npm,DIREKTSPEED-LTD/npm,lxe/npm,haggholm/npm,DIREKTSPEED-LTD/npm,segrey/npm,evocateur/npm,yodeyer/npm,yibn2008/npm,kimshinelove/naver-npm,misterbyrne/npm,xalopp/npm,Volune/npm,evanlucas/npm,segment-boneyard/npm,kemitchell/npm,DaveEmmerson/npm,DaveEmmerson/npm,yodeyer/npm,haggholm/npm,misterbyrne/npm,thomblake/npm,segment-boneyard/npm,kriskowal/npm,yibn2008/npm,cchamberlain/npm-msys2