nsqd: fix -tls-required=tcp-https with -tls-client-auth-policy
nsqd: fix -tls-required=tcp-https with -tls-client-auth-policy

Previously, specifying -tls-client-auth-policy would set -tls-required to
TLSRequired, overriding TLSRequiredExceptHTTP if it was specified.

Now, specifying the policy only sets TLSRequired if the current option is
TLSNotRequired.

coderhaoxin/nsq,wmydz1/nsq,nsqio/nsq,rpau/nsq,szqh97/nsq,mreiferson/nsq,sparklxb/nsq,moander/nsq,bo406/nsq,philipbo/nsq,szqh97/nsq,ploxiln/nsq,bitly/nsq,moander/nsq,qinlodestar/nsq,lcp0578/nsq,ShinichR/nsq,lcp0578/nsq,coderhaoxin/nsq,bitly/nsq,xuzhaokui/nsq,gaowenbin/nsq,CrazyJvm/nsq,sparklxb/nsq,ShinichR/nsq,bo406/nsq,absolute8511/nsq,chrislusf/nsq,wmydz1/nsq,ploxiln/nsq,sparklxb/nsq,beni55/nsq,absolute8511/nsq,kevinc0825/nsq,jehiah/nsq,mikedewar/nsq,rpau/nsq,beni55/nsq,Dieterbe/nsq,handsomesun/nsq,ShinichR/nsq,chaosue/nsq,sparklxb/nsq,msn217/nsq,nsqio/nsq,lcp0578/nsq,chaosue/nsq,bitly/nsq,xuzhaokui/nsq,nieanan/nsq,jehiah/nsq,OlafRadicke/nsq,beni55/nsq,rpau/nsq,coderhaoxin/nsq,w4ngyi/nsq,handsomesun/nsq,jlr52/nsq,Dieterbe/nsq,yh453926638/nsq,philipbo/nsq,philipbo/nsq,mikeqian/nsq,gaowenbin/nsq,bo406/nsq,MadBomber/nsq,CrazyJvm/nsq,w4ngyi/nsq,wuxu92/nsq,bo406/nsq,absolute8511/nsq,w4ngyi/nsq,xuzhaokui/nsq,magastzheng/nsq,nsqio/nsq,wuxu92/nsq,philipbo/nsq,lcp0578/nsq,handsomesun/nsq,kesutton/nsq,jlr52/nsq,rpau/nsq,kesutton/nsq,youxidev/nsq,ShinichR/nsq,myhongkongzhen/nsq,nsqio/nsq,mashuai/nsq,jlr52/nsq,CrazyJvm/nsq,MadBomber/nsq,myhongkongzhen/nsq,yh453926638/nsq,wuxu92/nsq,chrislusf/nsq,OlafRadicke/nsq,qinlodestar/nsq,kesutton/nsq,msn217/nsq,bitly/nsq,xiexingguang/nsq,w4ngyi/nsq,Dieterbe/nsq,ploxiln/nsq,jehiah/nsq,gaowenbin/nsq,mikedewar/nsq,qinlodestar/nsq,handsomesun/nsq,chrislusf/nsq,magastzheng/nsq,myhongkongzhen/nsq,yh453926638/nsq,msn217/nsq,jmptrader/nsq,MadBomber/nsq,mreiferson/nsq,mreiferson/nsq,qinlodestar/nsq,kevinc0825/nsq,jmptrader/nsq,yh453926638/nsq,qinlodestar/nsq,nsqio/nsq,xiexingguang/nsq,mikeqian/nsq,myhongkongzhen/nsq,MadBomber/nsq,szqh97/nsq,nieanan/nsq,msn217/nsq,kevinc0825/nsq,jehiah/nsq,jehiah/nsq,mikeqian/nsq,xiexingguang/nsq,sparklxb/nsq,yh453926638/nsq,kesutton/nsq,mashuai/nsq,absolute8511/nsq,jlr52/nsq,szqh97/nsq,mikeqian/nsq,bitly/nsq,handsomesun/nsq,philipbo/nsq,myhongkongzhen/nsq,CrazyJvm/nsq,chaosue/nsq,xiexingguang/nsq,mashuai/nsq,lcp0578/nsq,ploxiln/nsq,moander/nsq,kesutton/nsq,jmptrader/nsq,wmydz1/nsq,magastzheng/nsq,coderhaoxin/nsq,mashuai/nsq,xiexingguang/nsq,jlr52/nsq,w4ngyi/nsq,chaosue/nsq,Dieterbe/nsq,mreiferson/nsq,ploxiln/nsq,MadBomber/nsq,youxidev/nsq,chaosue/nsq,absolute8511/nsq,OlafRadicke/nsq,coderhaoxin/nsq,beni55/nsq,ShinichR/nsq,rpau/nsq,nieanan/nsq,CrazyJvm/nsq,mikedewar/nsq,beni55/nsq,wmydz1/nsq,mikeqian/nsq,wmydz1/nsq,Dieterbe/nsq,youxidev/nsq,gaowenbin/nsq,msn217/nsq,gaowenbin/nsq,bo406/nsq,mreiferson/nsq,mashuai/nsq,szqh97/nsq