[glibc] manual: update AddressSanitizer discussion

[Paul Eggert <eggert@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=54ae6d81c94364c1e13a5b8baef52b9e3475fedd

commit 54ae6d81c94364c1e13a5b8baef52b9e3475fedd
Author: Paul Eggert <eggert@cs.ucla.edu>
Date:   Sat Apr 8 13:51:26 2023 -0700

    manual: update AddressSanitizer discussion
    
    * manual/string.texi (Truncating Strings): Update obsolescent
    reference and use the more-generic term “AddressSanitizer”.
    Mention fortification, too.  -fcheck-pointer-bounds is no longer
    supported.

Diff:
---
 manual/string.texi | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/manual/string.texi b/manual/string.texi
index 57b804c1df..ad57265274 100644
--- a/manual/string.texi
+++ b/manual/string.texi
@@ -1088,11 +1088,10 @@ name, a truncated name can identify the wrong user.
 
 Although some buffer overruns can be prevented by manually replacing
 calls to copying functions with calls to truncation functions, there
-are often easier and safer automatic techniques that cause buffer
-overruns to reliably terminate a program, such as GCC's
-@option{-fcheck-pointer-bounds} and @option{-fsanitize=address}
-options.  @xref{Debugging Options,, Options for Debugging Your Program
-or GCC, gcc, Using GCC}.  Because truncation functions can mask
+are often easier and safer automatic techniques, such as fortification
+(@pxref{Source Fortification}) and AddressSanitizer
+(@pxref{Instrumentation Options,, Program Instrumentation Options, gcc, Using GCC}).
+Because truncation functions can mask
 application bugs that would otherwise be caught by the automatic
 techniques, these functions should be used only when the application's
 underlying logic requires truncation.