cmd: adiciona campo help.

Comandos podem documentar uma ajuda curta com o campo help.

diff --git a/lib/cmd.h b/lib/cmd.h
index f795d45..dbfdab0 100644 (file)
--- a/lib/cmd.h
+++ b/lib/cmd.h
@@ -24,6 +24,7 @@
 struct cmd {
        char *name;
        int (*run) (struct declaracao *dec, char **args, int argc);
+       char *help;
 };
 
 int cmd_init(void);