README_U: fix typo

diff --git a/README_U b/README_U
index 4141faa..b137b4b 100644 (file)
--- a/README_U
+++ b/README_U
@@ -15,7 +15,7 @@ Line  Description
        The second part of the list (after the middle ':') is the unit
        dependency.  It should list all the needed special units, as
        well as all the symbols used by the shell implementation. If
-       a symbol is nedded but its configuration value is not critical,
+       a symbol is needed but its configuration value is not critical,
        it can be preceded by a '+', in which case it is called a
        conditional dependency: its corresponding unit will be loaded
        if, and only if, that symbol is otherwise really wanted;