Bug#615893: grub boot menu crashes on 80 characters on linux lines

[Frank Heckenbach]

I have the same problem and found this bug report.
Some further observations:

- It only seems to happen when GRUB runs in a wider than 80
  characters screen mode (using "set gfxmode=..."). In plain 80x25,
  longer lines are wrapped and the bug does not occur. So maybe this
  is a relic from when GRUB didn't support changing screen modes.

- It does not only happen on the "linux" line. In my tests, it
  happened reproducibly on some lines and reproducibly not on
  others, but I couldn't discern a pattern regarding which lines.

- When the original line in grub.cfg is already longer than 80
  characters, it doesn't happen, and I can extend the line even
  further without crashing.