Doc: refer to the "commit-graph file" with dash

diff --git a/builtin/read-tree.c b/builtin/read-tree.c
index ebc43eb8057dc9c85aad4c608250ed9a6c4d6cd1..fbbc98e5161f011a25743a528e6bb3f85e415f51 100644 (file)
--- a/builtin/read-tree.c
+++ b/builtin/read-tree.c
@@ -133,7 +133,7 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
                         N_("same as -m, but discard unmerged entries")),
                { OPTION_STRING, 0, "prefix", &opts.prefix, N_("<subdirectory>/"),
                  N_("read the tree into the index under <subdirectory>/"),
-                 PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP },
+                 PARSE_OPT_NONEG },
                OPT_BOOL('u', NULL, &opts.update,
                         N_("update working tree with merge result")),
                { OPTION_CALLBACK, 0, "exclude-per-directory", &opts,