[glibc] manual: Fix termios.c example. (Bug 31078)

[Carlos O'Donell <carlos@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=3cbaacdfd2c11cb726011ef6464dce00c186a2bf

commit 3cbaacdfd2c11cb726011ef6464dce00c186a2bf
Author: Carlos O'Donell <carlos@redhat.com>
Date:   Mon Nov 20 13:15:34 2023 -0500

    manual: Fix termios.c example. (Bug 31078)
    
    Remove the unused 'char *name;' from the example.
    
    Use write instead of putchar to write input as it is read.
    
    Example tested on x86_64 by compiling and running the example.
    
    Tested by building the manual pdf and reviewing the results.
    
    Reviewed-by: Florian Weimer <fweimer@redhat.com>

Diff:
---
 manual/examples/termios.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/manual/examples/termios.c b/manual/examples/termios.c
index 751e57ad71..65bedad9cc 100644
--- a/manual/examples/termios.c
+++ b/manual/examples/termios.c
@@ -34,7 +34,6 @@ void
 set_input_mode (void)
 {
   struct termios tattr;
-  char *name;
 
   /* Make sure stdin is a terminal. */
   if (!isatty (STDIN_FILENO))
@@ -70,7 +69,7 @@ main (void)
       if (c == '\004')		/* @kbd{C-d} */
 	break;
       else
-	putchar (c);
+	write (STDOUT_FILENO, &c, 1);
     }
 
   return EXIT_SUCCESS;