[PATCH] testbot/LogUtils: Fix GetNewLogErrors() when there are no errors.

[Francois Gouget]

Don't use $Groups if it is undefined.

Signed-off-by: Francois Gouget 
---

This fixes WineSendLog and thus the patch status and Marvin emails.

testbot/lib/WineTestBot/LogUtils.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/testbot/lib/WineTestBot/LogUtils.pm b/testbot/lib/WineTestBot/LogUtils.pm
index 51932965c..32bf0fa61 100644
--- a/testbot/lib/WineTestBot/LogUtils.pm
+++ b/testbot/lib/WineTestBot/LogUtils.pm
@@ -889,7 +889,7 @@ sub GetNewLogErrors($$$)
   my ($RefFileName, $Groups, $Errors) = @_;

my (@NewGroups, %NewErrors, %NewIndices);
-  return (@NewGroups, %NewErrors, %NewIndices) if (!@$Groups);
+  return (@NewGroups, %NewErrors, %NewIndices) if (!$Groups or !@$Groups);

my ($RefGroups, $RefErrors) = GetLogErrors($RefFileName);
   return (undef, undef) if (!$RefGroups);