[source] scripts/download.pl: print the command used to download files

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/cbe0a7ecc0b76f4d97d87ca59a0ff8074b8946f4

commit cbe0a7ecc0b76f4d97d87ca59a0ff8074b8946f4
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Tue May 9 15:20:42 2017 +0200

    scripts/download.pl: print the command used to download files
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 scripts/download.pl | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/download.pl b/scripts/download.pl
index 3936f76..5c9397b 100755
--- a/scripts/download.pl
+++ b/scripts/download.pl
@@ -139,6 +139,7 @@ sub download
 		};
 	} else {
 		my @cmd = download_cmd("$mirror/$url_filename");
+		print STDERR "+ ".join(" ", at cmd)."\n";
 		open(FETCH_FD, '-|', @cmd) or die "Cannot launch curl or wget.\n";
 		$hash_cmd and do {
 			open MD5SUM, "| $hash_cmd > '$target/$filename.hash'" or die "Cannot launch $hash_cmd.\n";