diff --git a/show-index.c b/show-index.c
index 45bb535773fd9c36f73502df9462f7de800009c8..63f9da53237d4233bede66a28e4bcf27d5b44af1 100644 (file)
--- a/show-index.c
+++ b/show-index.c
#include "cache.h"
#include "pack.h"
+static const char show_index_usage[] =
+"git show-index < <packed archive index>";
+
int main(int argc, char **argv)
{
int i;
unsigned int version;
static unsigned int top_index[256];
+ if (argc != 1)
+ usage(show_index_usage);
if (fread(top_index, 2 * 4, 1, stdin) != 1)
die("unable to read header");
if (top_index[0] == htonl(PACK_IDX_SIGNATURE)) {