get_file_contents: silence error on missing branch

diff --git a/mirror-all b/mirror-all
index edfa569b4e837780c3446ad26f86d4a4976ba62f..a7d08df157ac3f705f2c35f5f62e608c22fe61a1 100755 (executable)
--- a/mirror-all
+++ b/mirror-all
@@ -84,7 +84,7 @@ get_file_contents() {
        local contents
        local content_hash
 
-       content_hash="$("$GIT" ls-tree --object-only "$BRANCH" -- "$1")"
+       content_hash="$("$GIT" ls-tree --object-only "$BRANCH" -- "$1" 2>/dev/null)"
 
        if [[ -z "$content_hash" ]]; then
                echo ""