Filesystem not expanding if rc.local does not exist

[strooooke]

Sort of follow-up on #267 - if /etc/rc.local does not exist originally, then it won't get created.

Issue seems to be a misplaced fi:

The block in lines 91/92 (if .../etc/rc.local exists but doesn't have exactly our content...) has its closing fi sit far down, in line 161, after writing the /etc/rc.local and making it executable.

What's suggested by the indentation, and would make sense to me, is moving the fi below line 92. Then we always get /etc/rc.local creation.

Or adding the or doesn't exist check in line 91 - and maybe indenting the whole block ;)

(The question whether just putting an /etc/rc.local in will work is a different one, and depends on whether your image will actually run /etc/rc.local, but that is a different problem that can be solved by modifying the image appropriately before pulling it).