reg: Abort 'add' operation when parsing command-line arguments that are not switches.

programs/reg/add.c

@@ -222,9 +222,12 @@ int reg_add(int argc, WCHAR *argvW[])
 
     for (i = 3; i < argc; i++)
     {
-        if (argvW[i][0] == '/' || argvW[i][0] == '-')
-        {
-            WCHAR *str = &argvW[i][1];
+        WCHAR *str;
+
+        if (argvW[i][0] != '/' && argvW[i][0] != '-')
+            goto invalid;
+
+        str = &argvW[i][1];
 
         if (!lstrcmpiW(str, L"ve"))
         {
@@ -263,7 +266,6 @@ int reg_add(int argc, WCHAR *argvW[])
             goto invalid;
         }
     }
-    }
 
     if (value_name && value_empty)
         goto invalid;