Comment 4 for bug 567250

I had another file do the same and noticed the external changes had appended a space without a newline to the file. Here's a hexdump of the tail of the file:

000011e0 74 69 66 69 65 72 27 29 0a 20 20 20 20 20 20 20 |tifier'). |
000011f0 20 0a 0a 0a 20 | ... |

After truncating the space away from the file, Leo opens fine.

I'm not sure if the first file that caused this problem had similar characteristics.