libbb: shrink lineedit_read_key()

function                                             old     new   delta
lineedit_read_key                                    237     231      -6

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

1 files changed, 1 insertions, 0 deletions

diff --git a/libbb/read_key.c b/libbb/read_key.c
index 829ae215c..cf8ed411e 100644
--- a/libbb/read_key.c
+++ b/libbb/read_key.c
@@ -291,6 +291,7 @@ int64_t FAST_FUNC safe_read_key(int fd, char *buffer, int timeout)
 {
         int64_t r;
         do {
+                /* errno = 0; - read_key does this itself */
                 r = read_key(fd, buffer, timeout);
         } while (errno == EINTR);
         return r;