sha1_file: convert check_sha1_signature to struct object_id

diff --git a/t/lib-httpd/broken-smart-http.sh b/t/lib-httpd/broken-smart-http.sh
old mode 100755 (executable)
new mode 100644 (file)
index f7ebfff..82cc610
--- a/t/lib-httpd/broken-smart-http.sh
+++ b/t/lib-httpd/broken-smart-http.sh
@@ -1,4 +1,3 @@
-#!/bin/sh
 printf "Content-Type: text/%s\n" "html"
 echo
 printf "%s\n" "001e# service=git-upload-pack"