Add corner case tests for diff-index and diff-files

diff --git a/Documentation/git-checkout.txt b/Documentation/git-checkout.txt
index 4014e7256d48262c97a38a543415d5a53f5407b9..e11cddbfc96f742968789abd369a4f7e240db27c 100644 (file)
--- a/Documentation/git-checkout.txt
+++ b/Documentation/git-checkout.txt
@@ -3,7 +3,7 @@ git-checkout(1)
 
 NAME
 ----
-git-checkout - Checkout and switch to a branch
+git-checkout - Checkout a branch or paths to the working tree
 
 SYNOPSIS
 --------