cmd/term: use constant from syscall package instead of magic number
cmd/term: use constant from syscall package instead of magic number

tsuru/tsuru,gciotta/tsuru,Endika/tsuru,ggarnier/tsuru,kgrvamsi/tsuru,Endika/tsuru,tsuru/tsuru,cezarsa/tsuru,firebitsbr/tsuru,hcxiong/tsuru,mderaldo/tsuru,ArxdSilva/tsuru,cezarsa/tsuru,ggarnier/tsuru,4eek/tsuru,jblancett/tsuru,gciotta/tsuru,hugoantunes/tsuru,tuxmonteiro/tsuru,cgvarela/tsuru,jblancett/tsuru,ggarnier/tsuru,ArxdSilva/tsuru,gwmoura/tsuru,gciotta/tsuru,ggarnier/tsuru,RichardKnop/tsuru,mderaldo/tsuru,jblancett/tsuru,firebitsbr/tsuru,ArxdSilva/tsuru,hugoantunes/tsuru,hcxiong/tsuru,tsuru/tsuru,RichardKnop/tsuru,mderaldo/tsuru,Endika/tsuru,tsuru/tsuru,guilhermebr/tsuru,tuxmonteiro/tsuru,cgvarela/tsuru,RichardKnop/tsuru,kgrvamsi/tsuru,ArxdSilva/tsuru,hcxiong/tsuru,cezarsa/tsuru,gwmoura/tsuru,guilhermebr/tsuru,firebitsbr/tsuru,guilhermebr/tsuru,guilhermebr/tsuru,4eek/tsuru,tuxmonteiro/tsuru,cgvarela/tsuru,gwmoura/tsuru,4eek/tsuru,cezarsa/tsuru,kgrvamsi/tsuru