Annotate generated lines

The lines above some are credited elsewhere (sensors-detect) so
I feel correct attribution might be helpful
in the future

lib/set_MODULES.sh

@@ -5,14 +5,18 @@ function set_MODULES () {
     source "$SCRIPTDIR/lib/paths.sh"
 
     # Write "/etc/modules"
-    printf "vfio
+    printf "
+# Generated by vfio-setup
+vfio
 vfio_iommu_type1
 vfio_pci ids=$1
 vfio_virqfd
 " >> "$SCRIPTDIR/$MODULES"
 
     # Write "/etc/initramfs-tools/modules"
-    printf "vfio
+    printf "
+# Generated by vfio-setup
+vfio
 vfio_iommu_type1
 vfio_pci
 vfio_virqfd
@@ -38,7 +42,7 @@ vfio_virqfd
         GPU_DEVID="$GPU_DEVID disable_vga=1"
     ;;
     esac
-    
+
     # Write the vfio modprobe config
     printf "# This is an autogenerated file that stubs your graphic card for use with vfio
 # This file should be placed inside /etc/modprobe.d/
@@ -57,7 +61,7 @@ softdep radeon pre: vfio vfio_pci
 
 function main () {
     SCRIPTDIR=$(dirname `which $0` | perl -pe "s/\/\.\.\/lib//" | perl -pe "s/\/lib$//")
-    
+
     set_MODULES $1
 }