etcdctl*.1 to etcdctl3*.1
for line in $(ls *.1); do mv
rename refs in man pages
sed -i "s/\\fBetcdctl\-/\\fBetcdctl3\-/g" *.1
sed -i s"/^etcdctl/ETCDCTL=3 etcdctl/" etcdctl3*.1
etcdctl*.1 to etcdctl2*.1
for line in $(ls *.1); do mv
rename refs in man pages
sed -i "s/\\fBetcdctl-/\\fBetcdctl2-/g" *.1