fenv-exceptions-trapping: Update documentation

[Bruno Haible]

A documentation update:


2023-11-05  Bruno Haible  <bruno@clisp.org>

        fenv-exceptions-trapping: Update documentation.
        * doc/glibc-functions/feenableexcept.texi: Document the Linux/hppa
        problem.

diff --git a/doc/glibc-functions/feenableexcept.texi 
b/doc/glibc-functions/feenableexcept.texi
index a858b4d6c6..0c98c5c844 100644
--- a/doc/glibc-functions/feenableexcept.texi
+++ b/doc/glibc-functions/feenableexcept.texi
@@ -34,5 +34,5 @@
 @item
 The resulting signal is @code{SIGILL} instead of @code{SIGFPE}
 on some platforms:
-macOS 12.5/arm64.
+Linux/hppa, macOS 12.5/arm64.
 @end itemize