Remove exec in last line of qvm-copy-to-vm

qubes-rpc/qvm-copy-to-vm

@@ -40,4 +40,4 @@ if [ $PROGRESS_TYPE = console ] ; then
 	export FILECOPY_TOTAL_SIZE=$(du --apparent-size -c -- "$@" 2> /dev/null | tail -1 | cut -f 1)
 fi
 
-exec /usr/lib/qubes/qrexec-client-vm $VM qubes.Filecopy /usr/lib/qubes/qfile-agent "$@"
+/usr/lib/qubes/qrexec-client-vm $VM qubes.Filecopy /usr/lib/qubes/qfile-agent "$@"