doc: develop: commands: Fix function prototype

When using the previous prototype you got a compiler warning like this:

    warning: initialization of 'int (*)(struct cmd_tbl *, int,  int,  char * const*)' from incompatible pointer type 'int (*)(struct cmd_tbl *, int,  int,  const char **)' [-Wincompatible-pointer-types]

Fixes: 3d9640f55cb2 ("doc: expand README.commands")
Signed-off-by: Alexander Dahl <ada@thorsis.com>

diff --git a/doc/develop/commands.rst b/doc/develop/commands.rst
index ede880d..5ad4e59 100644 (file)
--- a/doc/develop/commands.rst
+++ b/doc/develop/commands.rst
@@ -88,7 +88,7 @@ The command function pointer has to be of type
 
 .. code-block:: c
 
-    int (*cmd)(struct cmd_tbl *cmdtp, int flag, int argc, const char *argv[]);
+    int (*cmd)(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]);
 
 cmdtp
     Table entry describing the command (see above).