scripts/download.pl: fix broken link for KERNEL projects

Fix broken link generation for KERNEL projects.

Using $1 in projectsmirrors sub was still referencing the caller $1
instead of the remaining args of projectsmirrors sub.

Use shift and put the second arg of projectsmirrors sub in $append to
correctly handle the sub args.

Fixes: 465cf358881c ("scripts/download.pl: detach mirror URLs from script file")
Signed-off-by: Christian Marangi <[email protected]>

scripts/download.pl

@@ -59,6 +59,7 @@ sub localmirrors {
 
 sub projectsmirrors {
 	my $project = shift;
+	my $append = shift;
 
 	open (PM, "$scriptdir/projectsmirrors.json") ||
 		die "Can´t open $scriptdir/projectsmirrors.json: $!\n";
@@ -67,7 +68,7 @@ sub projectsmirrors {
 	my $mirror = decode_json $mirror_json;
 
 	foreach (@{$mirror->{$project}}) {
-		push @mirrors, $_ . "/" . ($1 or "");
+		push @mirrors, $_ . "/" . ($append or "");
 	}
 }