Remove dangling -- after parsing arguments

Test:`source command-line-options.sh && echo $@` has -- without the
patch and is empty with the patch
Test:`source command-line-options.sh --dry-run && echo $repo_branch`

Change-Id: I860c4c6556baf3a1483d753f85d9602c73620b51
diff --git a/tools/finalization/command-line-options.sh b/tools/finalization/command-line-options.sh
index d9397c2..3a1e049 100644
--- a/tools/finalization/command-line-options.sh
+++ b/tools/finalization/command-line-options.sh
@@ -3,6 +3,7 @@
 while true; do
     case "$1" in
         --dry-run) repo_upload_dry_run_arg="--dry-run"; repo_branch="finalization-dry-run"; shift ;;
+        --) shift; break;;
         *) break
     esac
 done