message: Add tc package to validator
  Closes:
  Approved by: dmitri-perelman
diff: @@ -38,4 +38,4 @@ cat > /etc/profile.d/libra_prompt.sh <<EOF
  export PS1="[\u:validator@\h \w]$ "
  EOF
  -yum -y install ngrep tcpdump perf gdb nmap-ncat strace htop sysstat
  +yum -y install ngrep tcpdump perf gdb nmap-ncat strace htop sysstat tc
  