updated for version 7.4.338
Problem:    Cannot wrap lines taking indent into account.
Solution:   Add the 'breakindent' option. (many authors, final improvements by
            Christian Brabandt)
diff --git a/runtime/optwin.vim b/runtime/optwin.vim
index 280e4e8..0c92f1a 100644
--- a/runtime/optwin.vim
+++ b/runtime/optwin.vim
@@ -324,6 +324,12 @@
 call append("$", "linebreak\twrap long lines at a character in 'breakat'")
 call append("$", "\t(local to window)")
 call <SID>BinOptionL("lbr")
+call append("$", "breakindent\tpreserve indentation in wrapped text")
+call append("$", "\t(local to window)")
+call <SID>BinOptionL("bri")
+call append("$", "breakindentopt\tadjust breakindent behaviour")
+call append("$", "\t(local to window)")
+call <SID>OptionL("briopt")
 call append("$", "breakat\twhich characters might cause a line break")
 call <SID>OptionG("brk", &brk)
 call append("$", "showbreak\tstring to put before wrapped screen lines")