Whitespace cleanup

Removes trailing whitespace from all source files.

Signed-off-by: Jonathon Anderson <janderson@ciq.co>

userdocs/contributing/development-environment-kvm.rst

@@ -9,12 +9,12 @@ Create CentOS 7 development virtual machine under KVM
 
    # KVM is running on server called master1 which is not my desktop
    ssh -X master1
-   
+
    # On master1 server
    wget -P /global/downloads/centos http://mirror.mobap.edu/centos/7.8.2003/isos/x86_64/CentOS-7-x86_64-Everything-2003.iso
-   
+
    qemu-img create -o preallocation=metadata -f qcow2 /global/images/centos-7.qcow2 32G
-   
+
    # install wwdev Centos 7 development VM
    sudo virt-install --virt-type kvm --name centos7-wwdev --ram 8192 \
       --disk /global/images/centos-7.qcow2,format=qcow2 \
@@ -22,22 +22,22 @@ Create CentOS 7 development virtual machine under KVM
       --graphics vnc,listen=0.0.0.0 --noautoconsole \
       --os-type=linux --os-variant=rhel7.0 \
       --location=/global/downloads/centos/CentOS-7-x86_64-Everything-2003.iso
-   
+
    # Complete installation using virt-manager
-   
+
    # To start virt-manager on non-local server
    ssh -X master1
-   
+
    sudo -E virt-manager
-   
+
    # Login to VM and install @development group and go language
    ssh root@wwdev
-   
+
    # Disable selinux by modifying /etc/sysconfig/selinux
    vi /etc/sysconfig/selinux
-   
+
        SELINUX=disabled
-   
+
    # disable firewall
    systemctl stop firewalld
    systemctl disable firewalld
@@ -49,11 +49,11 @@ Turn off default network dhcp on server master1
 
    # shutdown all VMs
    sudo virsh net-destroy default
-   
+
    sudo virsh net-edit default
-   
+
        # remove dhcp lines from XML
-   
+
    sudo virsh net-start default
 
 Build and install warewulf on wwdev
@@ -62,7 +62,7 @@ Build and install warewulf on wwdev
 .. code-block:: bash
 
    ssh wwdev
-   
+
    # Fedora prerequisites
    sudo dnf -y install tftp-server tftp
    sudo dnf -y install dhcp
@@ -72,7 +72,7 @@ Build and install warewulf on wwdev
    sudo dnf install libassuan.x86_64 libassuan-devel.x86_64
    sudo dnf golang
    sudo dnf nfs-utils
-   
+
    # Centos prerequisites
    sudo yum -y install tftp-server tftp
    sudo yum -y install dhcp
@@ -82,44 +82,44 @@ Build and install warewulf on wwdev
    sudo yum install gpgme-devel
    sudo yum install libassuan.x86_64 libassuan-devel.x86_64
    sudo yum install https://packages.endpoint.com/rhel/7/os/x86_64/endpoint-repo-1.7-1.x86_64.rpm
-   sudo yum install golang 
+   sudo yum install golang
    sudo yum install nfs-utils
-   
+
    # Install Warewulf and dependencies
    git clone https://github.com/hpcng/warewulf.git
    cd warewulf
-   
+
    make all
    sudo make install
-   
+
    # Configure the controller
    Edit the file /etc/warewulf/warewulf.conf and ensure that you've ser the approprite configuration parameters
-   
+
    # Configure system service automatically
    sudo wwctl configure dhcp # Create the default dhcpd.conf file and start/enable service
    sudo wwctl configure tftp # Install the base tftp/PXE boot files and start/enable service
    sudo wwctl configure nfs  # Configure the exports and create an fstab in the default system overlay
    sudo wwctl configure ssh  # Build the basic ssh keys to be included by the default system overlay
-   
+
    # Pull and build the VNFS container and kernel
    sudo wwctl container import docker://warewulf/centos-8 centos-8 --setdefault
    sudo wwctl kernel import build $(uname -r) --setdefault
-   
+
    # Set up the default node profile
    sudo wwctl profile set default -K $(uname -r) -C centos-7
    sudo wwctl profile set default --netdev eth0 -M WW_server_subnet_mask -G WW_server_ip
    sudo wwctl profile list
-   
+
    # Add a node and build node specific overlays
    sudo wwctl node add n0000.cluster --netdev eth0 -I n0000_ip --discoverable
    sudo wwctl node list -a n0000
-   
+
    # Review Warewulf overlays
    sudo wwctl overlay list -l
    sudo wwctl overlay list -ls
    sudo wwctl overlay edit default /etc/hello_world.ww
    sudo wwctl overlay build -a
-   
+
    # Start the Warewulf daemon
    sudo wwctl ready
    sudo wwctl server start