Bug 1426321 - Explicitly enable tar wildcard support when repacking proguard. r=nalexander

While on Centos --wildcards is the default, it is not on Debian.

--HG--
extra : rebase_source : cff03dfb587d295c4e8f8893948a9775d6e5e8b5

taskcluster/scripts/misc/repack-proguard-jar.sh

@@ -21,7 +21,7 @@ wget $URL
 echo "$SHA256SUM  $ARCHIVE" | sha256sum -c -
 
 # Just the file we need.
-tar zxvf $ARCHIVE '*/proguard.jar'
+tar --wildcards -zxvf $ARCHIVE '*/proguard.jar'
 
 # The archive is to satisfy source distribution requirements.
 mv $ARCHIVE $UPLOAD_DIR