wcsstr: Update doc

[Bruno Haible]

glibc now has a worst-case O(n) wcsstr() function, see
https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=cf11e74b0d81d389bcad5cdbba020ba475f0ac4b


2024-04-19  Bruno Haible  <bruno@clisp.org>

        wcsstr: Update doc.
        * doc/posix-functions/wcsstr.texi: Update glibc version.

diff --git a/doc/posix-functions/wcsstr.texi b/doc/posix-functions/wcsstr.texi
index e4715dba64..11815d1a24 100644
--- a/doc/posix-functions/wcsstr.texi
+++ b/doc/posix-functions/wcsstr.texi
@@ -18,7 +18,7 @@
 @item
 This function has quadratic instead of linear worst-case complexity on some
 platforms:
-glibc 2.37, macOS 12.5, FreeBSD 13.1, NetBSD 10.0, OpenBSD 7.2, AIX 7.2, HP-UX 
11, IRIX 6.5, Solaris 11.4, Cygwin 2.9.0, mingw, MSVC 14.
+glibc 2.39, macOS 12.5, FreeBSD 13.1, NetBSD 10.0, OpenBSD 7.2, AIX 7.2, HP-UX 
11, IRIX 6.5, Solaris 11.4, Cygwin 2.9.0, mingw, MSVC 14.
 @end itemize
 
 Portability problems not fixed by Gnulib: