Merge branch 'po/doc-add-renormalize' into seen

Documentation for "git add --renormalize" has been improved.

* po/doc-add-renormalize:
  doc add: renormalize is not idempotent for CRCRLF

Author: gitster

Documentation/git-add.txt

@@ -188,7 +188,8 @@ for "git add --no-all <pathspec>...", i.e. ignored removed files.
 	forcibly add them again to the index.  This is useful after
 	changing `core.autocrlf` configuration or the `text` attribute
 	in order to correct files added with wrong CRLF/LF line endings.
-	This option implies `-u`.
+	This option implies `-u`. Lone CR characters are untouched, so
+	cleaning not idempotent. A CRCRLF sequence cleans to CRLF.
 
 --chmod=(+|-)x::
 	Override the executable bit of the added files.  The executable