Update install_en.sh bugfix

Author: stutzerik

installer/install_en.sh

@@ -32,7 +32,7 @@ case $yn in
  apt-get -y install mysql-server mysql-client phpmyadmin
  sudo systemctl start mysql
  sudo systemctl enable mysql
- mysql -uroot -p < createdb.sql
+ mysql -u root -p < createdb.sql
  echo "Installing KVM hypervisor...";
  apt-get -y install qemu-kvm libvirt-daemon-system virtinst libvirt-clients bridge-utils
  sudo systemctl enable libvirtd