Show usage string for 'git show-ref -h'

diff --git a/Documentation/git-filter-branch.txt b/Documentation/git-filter-branch.txt
index 32ea8564a5d0c5ffebb251353569aeda8c02f651..2b40babb6ba1c5eb99ae2cc7748854f5e4dcd864 100644 (file)
--- a/Documentation/git-filter-branch.txt
+++ b/Documentation/git-filter-branch.txt
@@ -12,6 +12,7 @@ SYNOPSIS
        [--index-filter <command>] [--parent-filter <command>]
        [--msg-filter <command>] [--commit-filter <command>]
        [--tag-name-filter <command>] [--subdirectory-filter <directory>]
+       [--prune-empty]
        [--original <namespace>] [-d <directory>] [-f | --force]
        [--] [<rev-list options>...]