resdl-download.txt: better cert verification

conf/resdl-download.txt

@@ -141,7 +141,7 @@ verifycerts() {
   for repo in $(echo "$stuff_repo" | select_word 1); do
     [ -f "$tmpdir/repos/$repo.jar" ] || continue;
     certobject="repo/$repo.cer";
-    unzip -l "$tmpdir/repos/$repo.jar" "META-INF/*" | grep -q "META-INF/MANIFEST.MF" && jarsigner -verify "$tmpdir/repos/$repo.jar" > /dev/null || {
+    unzip -l "$tmpdir/repos/$repo.jar" "META-INF/*" | grep -q "META-INF/.*.RSA" && jarsigner -verify "$tmpdir/repos/$repo.jar" > /dev/null || {
       echo "  !! Verification failed for repo ($repo)";
       continue;
     }