difftool --no-index: error out on --dir-diff (and don't crash)

diff --git a/fetch-negotiator.h b/fetch-negotiator.h
index ddb44a22dce42b5cce8f747987e0848483350993..9e3967ce6626be459ad7d8a0590240b06e7056e3 100644 (file)
--- a/fetch-negotiator.h
+++ b/fetch-negotiator.h
@@ -1,5 +1,5 @@
-#ifndef FETCH_NEGOTIATOR
-#define FETCH_NEGOTIATOR
+#ifndef FETCH_NEGOTIATOR_H
+#define FETCH_NEGOTIATOR_H
 
 struct commit;