[gcc r16-16] libstdc++: Clarify that _S_ prefix is be used for static member functions.

[Tomasz Kaminski]

https://gcc.gnu.org/g:6808f74b4f07decb3727624f0e62e7c57ae87022

commit r16-16-g6808f74b4f07decb3727624f0e62e7c57ae87022
Author: Tomasz Kamiński <tkaminsk@redhat.com>
Date:   Fri Apr 18 09:38:32 2025 +0200

    libstdc++: Clarify that _S_ prefix is be used for static member functions.
    
    libstdc++-v3/ChangeLog:
    
            * doc/xml/manual/appendix_contributing.xml: Add 'and functions'.

Diff:
---
 libstdc++-v3/doc/xml/manual/appendix_contributing.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libstdc++-v3/doc/xml/manual/appendix_contributing.xml b/libstdc++-v3/doc/xml/manual/appendix_contributing.xml
index ac607fcfad41..b9245453497b 100644
--- a/libstdc++-v3/doc/xml/manual/appendix_contributing.xml
+++ b/libstdc++-v3/doc/xml/manual/appendix_contributing.xml
@@ -895,7 +895,7 @@ indicate a place that may require attention for multi-thread safety.
 
       Examples:  <code>_M_num_elements  _M_initialize ()</code>
 
-      Static data members, constants, and enumerations: <literal>_S_.*</literal>
+      Static data and function members, constants, and enumerations: <literal>_S_.*</literal>
 
       Examples: <code>_S_max_elements  _S_default_value</code>