specify netcat-openbsd package for Ubuntu (#37)

Merged with Liza's permission

Author: 0x6d6f7468

acmlib.sh

@@ -391,7 +391,7 @@ ensure_common_tools_installed () {
 
     require_sudo
 
-    local ubuntu_tools="gdb wget curl iproute2 make netcat openssh-client rsync unzip tar tzdata"
+    local ubuntu_tools="gdb wget curl iproute2 make netcat-openbsd openssh-client rsync unzip tar tzdata"
     local centos_tools="gdb wget curl make nmap-ncat coreutils iproute openssh-clients rsync unzip tar tzdata"
     local required_tools="adduser awk cat chmod chown cp curl date egrep gdb getent grep ip make mkdir mv nc passwd printf rm rsync sed ssh-keygen sleep tar tee tr unzip wc wget"
     if [ -x /usr/bin/apt-get -a -x /usr/bin/dpkg-query ]; then