Fix http_proxy export line

Author: theypsilon

downloader_force_proxy.sh

@@ -22,5 +22,5 @@ set -euo pipefail
 your_http_proxy_url="http://your-proxy-server-url-goes-here.com"
 
 rm -f /media/fat/Scripts/.config/downloader_bin /media/fat/Scripts/.config/downloader_latest.zip
-export http_proxy="${http_proxy}:-${your_http_proxy_url}"
+export http_proxy="${http_proxy:-${your_http_proxy_url}}"
 /media/fat/Scripts/downloader.sh