doc: Mention `+` as part of <cargo-opts>

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/README.md b/README.md
index 5cccca173f4e0cd301f807126c60aa79f6576c50..ea837f807eb58137e8a5104ee09395f687cb01a1 100644 (file)
--- a/README.md
+++ b/README.md
@@ -248,7 +248,7 @@ rules when interpreting its command line:
     treated as the start of the `<cargo-opts>`.
 
   * `<cargo-opts>` are terminated by `--` (which is removed) or the
-    first argument which does not start with a `-`.
+    first argument which does not start with a `-` or `+`.
 
     (It is not possible to get nailing-cargo to pass the value `--`
     as a separate argument to a cargo global option, but cargo global