getty: add ECHOE explanation

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

1 files changed, 3 insertions, 1 deletions

diff --git a/loginutils/getty.c b/loginutils/getty.c
index 29d889f43..4e194c45f 100644
--- 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?) */