Improve signal name<->number conversions.

Include all the signals, not just the POSIX ones.

In particular, improve support for real-time signals. My attempt to
switch AOSP builds over to toybox timeout got reverted when I broke the
ART build bots which use SIGRTMIN+2.

Also fix `kill -l 3` to show "QUIT" and `kill -l QUIT` to show "3".

Also make the `kill -l` output include numbers and names, and format it
to look better on a 80x24 tty, because it's always August 1978 somewhere.

1 files changed, 1 insertions, 1 deletions

diff --git a/toys/lsb/killall.c b/toys/lsb/killall.c
index 8870618b..119e01fa 100644
--- a/toys/lsb/killall.c
+++ b/toys/lsb/killall.c
@@ -68,7 +68,7 @@ void killall_main(void)
   TT.signum = SIGTERM;
 
   if (toys.optflags & FLAG_l) {
-    sig_to_num(NULL);
+    list_signals();
     return;
   }