fix very stupid out of range error

include/cli-fancy.hpp

@@ -204,8 +204,7 @@ public:
   }
 
   std::string GetArg(std::string w, std::string def = "") {
-    if (!FindShort(m_args, w))
+    if (!FindShort(m_args, w)) return def;
-      return def;
     for (size_t i = 0; i < m_args.size() - 1; i++) {
       if (m_args[i] == std::string("-" + w)) {
         return m_args[i + 1];
@@ -268,6 +267,7 @@ public:
 
   void Execute() {
     command::ArgumentList arglist;
+    if (m_args.size() > 1) {
       for (const auto &c : m_commands) {
         if (c.GetName() == m_args[1]) {
           for (const auto &j : c.GetArgs()) {
@@ -291,6 +291,7 @@ public:
           return;
         }
       }
+    }
     PrintHelp("");
   }