[PATCH] libstdc++: Fix description of std::ios::trunc (PR 92886)

[Jonathan Wakely]

        PR libstdc++/92886
        * include/bits/ios_base.h (std::ios_base::trunc): Fix comment.

Committing to trunk as obvious.


commit 9acff881dea3a00ae588f8ebc4c5289b98f7ee52
Author: Jonathan Wakely <jwak...@redhat.com>
Date:   Tue Dec 10 17:00:30 2019 +0000

    libstdc++: Fix description of std::ios::trunc (PR 92886)
    
            PR libstdc++/92886
            * include/bits/ios_base.h (std::ios_base::trunc): Fix comment.

diff --git a/libstdc++-v3/include/bits/ios_base.h 
b/libstdc++-v3/include/bits/ios_base.h
index 06a3e0870f3..be908b3ffd2 100644
--- a/libstdc++-v3/include/bits/ios_base.h
+++ b/libstdc++-v3/include/bits/ios_base.h
@@ -445,7 +445,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
     /// Open for output.  Default for @c ofstream and fstream.
     static const openmode out =                _S_out;
 
-    /// Open for input.  Default for @c ofstream.
+    /// Truncate an existing stream when opening.  Default for @c ofstream.
     static const openmode trunc =      _S_trunc;
 
     // 27.4.2.1.5  Type ios_base::seekdir