[Bug ada/66390] Text_IO.Get_Line does not correctly handle missing line marker for last line in all cases

[tornenvi at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66390

--- Comment #2 from tornenvi at gmail dot com ---
also note that line 84 of \gcc\ada\a-tigeli.adb reads

  memset (S, 10, size_t (N));

I believe the hardcoded '10' here should be 'LM'