[tools] testbot/SetWinLocale: Simplify checking for the locale options.

[Francois Gouget]

They cannot have a defined value that is false.

Signed-off-by: Francois Gouget 
---
 testbot/bin/SetWinLocale | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/testbot/bin/SetWinLocale b/testbot/bin/SetWinLocale
index d4dc1c586..6cc810226 100755
--- a/testbot/bin/SetWinLocale
+++ b/testbot/bin/SetWinLocale
@@ -413,8 +413,8 @@ if (!defined $Usage)
     $CountryId = $Countries{$OptCountry};
   }

-  if (!defined $OptLocale and !defined $OptSystem and !defined $OptMUI and
-      !defined $OptKeyboard and !defined $OptCountry)
+  if (!$OptLocale and !$OptSystem and !$OptMUI and !$OptKeyboard and
+      !$OptCountry)
   {
     Error("you must specify at least one locale to change\n");
     $Usage = 2;