netqueue: improve docs related to ChanSize constant.
netqueue: improve docs related to ChanSize constant.

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