[Bug c++/88095] class nontype template parameter UDL string literals doesn't accepts deduction placeholder

[tom at honermann dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88095

--- Comment #3 from Tom Honermann <tom at honermann dot net> ---
A patch for this issue has been submitted:
https://gcc.gnu.org/ml/gcc-patches/2019-08/msg00150.html