Tidying!

src/freedombone-image-hardware-setup

     dtb="$1"
 
     # Setup boot.cmd
-    if grep -q btrfs /etc/fstab ; then
+    fstype=ext4
+    if grep -q btrfs /etc/fstab; then
         fstype=btrfs
-    else
-        fstype=ext4
+    fi
+
     if [ -n "$command_line" ] ; then
         echo flash-kernel flash-kernel/linux_cmdline string "$command_line" | debconf-set-selections
     fi
     bbb_version=$1
 
     # Setup uEnv.txt
+    fstype=ext4
     if grep -q btrfs /etc/fstab ; then
         fstype=btrfs
-    else
-        fstype=ext4
     fi
     if [ ! $bbb_version ]; then
         kernelVersion=$(ls /usr/lib/*/am335x-boneblack.dtb | head -1 | cut -d/ -f4)