fix non-portable GNU find(1)-ism
fix non-portable GNU find(1)-ism

GNU find(1)'s -not operator is not POSIX compliant.  Use ! operator
instead in order to work with other find(1) implementations.

pcorpet/hub,ryo33/hub,codydaig/hub,xantage/hub,terry2000/hub,pwaller/hub,dongjoon-hyun/hub,aspiers/hub,ASidlinskiy/hub,aspiers/hub,aereal/hub,cpick/hub,tomasv/hub,SanCoder-Q/hub,codydaig/hub,rlugojr/hub,pwaller/hub,sbp/hub,AndBicScadMedia/hub,haikyuu/hub,github/hub,haikyuu/hub,isundaylee/hub,xantage/hub,dongjoon-hyun/hub,isundaylee/hub,haikyuu/hub,whilp/hub,hb9kns/hub,hb9kns/hub,adjohnson916/hub,naru0504/hub,hopil/hub,ASidlinskiy/hub,terry2000/hub,naru0504/hub,github/hub,aereal/hub,naru0504/hub,jpkrohling/hub,adjohnson916/hub,pankona/hub,github/hub,elancom/hub,jpkrohling/hub,SanCoder-Q/hub,tomasv/hub,AndBicScadMedia/hub,jpkrohling/hub,ASidlinskiy/hub,nmfzone/hub,ryo33/hub,hopil/hub,boris-rea/hub,github/hub,pankona/hub,cpick/hub,nmfzone/hub,elancom/hub,adjohnson916/hub,whilp/hub,SanCoder-Q/hub,nmfzone/hub,aereal/hub,ryo33/hub,dongjoon-hyun/hub,whilp/hub,jingweno/hub,jingweno/hub,jingweno/hub,aspiers/hub,rlugojr/hub,AndBicScadMedia/hub,sbp/hub,isundaylee/hub,boris-rea/hub,hb9kns/hub,elancom/hub,nlutsenko/hub,terry2000/hub,xantage/hub,hopil/hub,pwaller/hub,tomasv/hub,nlutsenko/hub,sbp/hub,boris-rea/hub,nlutsenko/hub,pankona/hub,codydaig/hub,rlugojr/hub,cpick/hub,pcorpet/hub,pcorpet/hub