uplss: imgur -> pomf.cat

uplss

@@ -1,6 +1,8 @@
 #!/usr/bin/env bash
 
+set -e
+
 file="$HOME/screenshot.png"
-url=`curl http://imgur.com/upload -F Filedata=@$file | grep -o '"hash":".*",'`
-url=http://i.imgur.com/${url:8:${#url}-10}.png
+url=`curl https://pomf.cat/upload.php -F "files[]=@$file" | grep -o '"url":".*",'`
+url=https://a.pomf.cat/${url:7:${#url}-9}
 x-www-browser $url