[Bug middle-end/91490] [9/10 Regression] bogus argument missing terminating nul warning on strlen of a flexible array member

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91490

--- Comment #2 from Martin Sebor <msebor at gcc dot gnu.org> ---
A subset of the patch referenced in comment #1 that deals with just this issue:
https://gcc.gnu.org/ml/gcc-patches/2019-08/msg01517.html