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-rw-r--r--builtin/diff-index.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/builtin/diff-index.c b/builtin/diff-index.c
index d979824f93..1af373d002 100644
--- a/builtin/diff-index.c
+++ b/builtin/diff-index.c
@@ -21,6 +21,7 @@ int cmd_diff_index(int argc, const char **argv, const char *prefix)
gitmodules_config();
git_config(git_diff_basic_config, NULL); /* no "diff" UI options */
rev.abbrev = 0;
+ precompose_argv(argc, argv);
argc = setup_revisions(argc, argv, &rev, NULL);
for (i = 1; i < argc; i++) {