[committed] libstdc++: Update documentation that only refers to c++98 and c++11

[Jonathan Wakely]

Signed-off-by: Jonathan Wakely <jwakely@redhat.com>

libstdc++-v3/ChangeLog:

	* doc/xml/manual/using.xml: Generalize to apply to more than
	just -std=c++11.
	* doc/html/manual/using_macros.html: Regenerate.

Committed to trunk.

-------------- next part --------------
commit bd0df30a7bc7a2e98e643cf84901e5383f83c005
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Thu Sep 16 15:36:31 2021

    libstdc++: Update documentation that only refers to c++98 and c++11
    
    Signed-off-by: Jonathan Wakely <jwakely@redhat.com>
    
    libstdc++-v3/ChangeLog:
    
            * doc/xml/manual/using.xml: Generalize to apply to more than
            just -std=c++11.
            * doc/html/manual/using_macros.html: Regenerate.

diff --git a/libstdc++-v3/doc/xml/manual/using.xml b/libstdc++-v3/doc/xml/manual/using.xml
index 24543e9526e..65fde4609db 100644
--- a/libstdc++-v3/doc/xml/manual/using.xml
+++ b/libstdc++-v3/doc/xml/manual/using.xml
@@ -1065,7 +1065,7 @@ g++ -Winvalid-pch -I. -include stdc++.h -H -g -O2 hello.cc -o test.exe
 	removes older ARM-style iostreams code, and other anachronisms
 	from the API.  This macro is dependent on the version of the
 	standard being tracked, and as a result may give different results for
-	<code>-std=c++98</code> and <code>-std=c++11</code>. This may
+	different <code>-std</code> options.  This may
 	be useful in updating old C++ code which no longer meet the
 	requirements of the language, or for checking current code
 	against new language standards.