`ping -w` does not work on recent MacOS

[hasnolen]

There's no -w flag on MacOS macOS 13.0 22A380 arm6, so it was breaking. I had to make this change:

diff --git a/rugmi b/rugmi
index 93af56b..46428bd 100755
@@ -253,7 +253,7 @@ print_link() {
 
 # Ping imgur.
 ping_imgur() {
-    ping -c1 -w2 imgur.com >/dev/null 2>&1
+    ping -c1 imgur.com >/dev/null 2>&1
 }
 
 # Check if the requested link type is valid.