getty: add ECHOE explanation

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

diff --git a/loginutils/getty.c b/loginutils/getty.c
index 29d889f..4e194c4 100644 (file)
--- a/loginutils/getty.c
+++ b/loginutils/getty.c
@@ -286,7 +286,9 @@ static void termios_final(void)
        if (G.eol == '\r') {
                G.termios.c_iflag |= ICRNL; /* map CR on input to NL */
        }
-       /* non-raw input; enable SIGINT/QUIT/ec sigs; echo; echo NL on kill char;
+       /* non-raw input; enable SIGINT/QUIT/etc sigs; echo;
+        * echo erase character as BS-space-BS;
+        * echo NL on kill char;
         * erase entire line via BS-space-BS on kill char */
        G.termios.c_lflag |= ICANON | ISIG | ECHO | ECHOE | ECHOK | ECHOKE;
        /* echo ctrl chars as ^c; (what is ECHOPRT?) */