Add tail -1 before tr to use only the last value

misc/alpine-tools.func

@@ -201,10 +201,10 @@ download_with_progress() {
 
   content_length=$(
     curl -fsSLI "$url" 2>/dev/null |
-      # May return multiple values on redirect. i.e., 0 and content-length
+      # May return multiple values on redirect. i.e., 0 and actual content-length value
       # Cast $2 to int by adding 0 to it
       awk '(tolower($1) ~ /^content-length:/) && ($2 + 0 > 0) {print $2+0}' |
-      tr -cd '[:digit:]' || true
+      tail -1 | tr -cd '[:digit:]' || true
   )
 
   if [ -n "$content_length" ]; then