t/t2102-update-index-symlinks.sh: use the $( ... ) construct for command substitution

diff --git a/builtin/patch-id.c b/builtin/patch-id.c
index ba34dac4d2fae9bce24932c92fcee2a4bfc0f102..366ce5a5d419649dba34f607ed3f54b6a28bd3ea 100644 (file)
--- a/builtin/patch-id.c
+++ b/builtin/patch-id.c
@@ -165,7 +165,7 @@ static void generate_id_list(int stable)
        strbuf_release(&line_buf);
 }
 
-static const char patch_id_usage[] = "git patch-id [--stable | --unstable] < patch";
+static const char patch_id_usage[] = "git patch-id [--stable | --unstable]";
 
 static int git_patch_id_config(const char *var, const char *value, void *cb)
 {