[gcc r14-2011] docs: replace backslashchar [PR 110329].

[Tamar Christina]

https://gcc.gnu.org/g:b8b19729e65c79d5b9399591d19e8724b52347f9

commit r14-2011-gb8b19729e65c79d5b9399591d19e8724b52347f9
Author: Tamar Christina <tamar.christina@arm.com>
Date:   Wed Jun 21 10:34:54 2023 +0100

    docs: replace backslashchar [PR 110329].
    
    It seems like @blackslashchar{} is a relatively new addition
    to texinfo.  Other parts of the docs use @samp{\} so use it
    here too so older distros work.
    
    gcc/ChangeLog:
    
            PR other/110329
            * doc/md.texi: Replace backslashchar.

Diff:
---
 gcc/doc/md.texi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/doc/md.texi b/gcc/doc/md.texi
index 052375b1a31..9648fdc846a 100644
--- a/gcc/doc/md.texi
+++ b/gcc/doc/md.texi
@@ -837,7 +837,7 @@ blocks on the line.
 @item
 Within an @samp{@{@@} block, any iterators that do not get expanded will result
 in an error.  If for some reason it is required to have @code{<} or @code{>} in
-the output then these must be escaped using @backslashchar{}.
+the output then these must be escaped using @samp{\}.
 
 @item
 It is possible to use the @samp{attrs} list to specify some attributes and to