Merge branch 'ug/doc-lose-dircache'

Doc update.

* ug/doc-lose-dircache:
  doc: remove "directory cache" from man pages
diff --git a/Documentation/git-ls-files.txt b/Documentation/git-ls-files.txt
index cbcf526..0a3b526 100644
--- a/Documentation/git-ls-files.txt
+++ b/Documentation/git-ls-files.txt
@@ -23,9 +23,8 @@
 
 DESCRIPTION
 -----------
-This merges the file listing in the directory cache index with the
-actual working directory list, and shows different combinations of the
-two.
+This merges the file listing in the index with the actual working
+directory list, and shows different combinations of the two.
 
 One or more of the options below may be used to determine the files
 shown:
diff --git a/Documentation/git-update-index.txt b/Documentation/git-update-index.txt
index 1489cb0..2853f16 100644
--- a/Documentation/git-update-index.txt
+++ b/Documentation/git-update-index.txt
@@ -30,9 +30,8 @@
 
 DESCRIPTION
 -----------
-Modifies the index or directory cache. Each file mentioned is updated
-into the index and any 'unmerged' or 'needs updating' state is
-cleared.
+Modifies the index. Each file mentioned is updated into the index and
+any 'unmerged' or 'needs updating' state is cleared.
 
 See also linkgit:git-add[1] for a more user-friendly way to do some of
 the most common operations on the index.