example.c: it is now possible to specify server ip/port.
example.c: it is now possible to specify server ip/port.

This makes possible to use the example with IPv6 addresses and/or with a
different Redis instance than 127.0.0.1:6379.

Microsoft/hiredis,rangan337/hiredis,thomaslee/hiredis,charsyam/hiredis,hidebug/hiredis,redis/hiredis,xjzhou/hiredis,nherment/arsenic,tattsun/hiredis,liulingfree/hiredis,owent-contrib/hiredis,olgeni/hiredis,owent-contrib/hiredis,jqk6/hiredis,h1048576/hiredis,Yhgenomics/hiredis,picrin/redisSamples,thomaslee/hiredis,liulingfree/hiredis,arinal/hiredis,yiliaofan/hiredis,redis/hiredis,jinguoli/hiredis,galdor/hiredis,chenlicong0821/hiredis,chenlicong0821/hiredis,jinguoli/hiredis,redis/hiredis,thedrow/hiredis,charsyam/hiredis,badboy/hiredis-win,hidebug/hiredis,rangan337/hiredis,Microsoft/hiredis,xjzhou/hiredis,Yhgenomics/hiredis,olgeni/hiredis,nokiddin/hiredis,jinguoli/hiredis,galdor/hiredis,tattsun/hiredis