+ fix typo threshold (sub)

network/paloalto/snmp/mode/clusterstatus.pm

@@ -50,7 +50,7 @@ sub new {
     return $self;
 }
 
-sub check_treshold_overload {
+sub check_threshold_overload {
     my ($self, %options) = @_;
     
     $self->{overload_th} = {};
@@ -72,7 +72,7 @@ sub check_treshold_overload {
 sub check_options {
     my ($self, %options) = @_;
     $self->SUPER::init(%options);
-    $self->check_treshold_overload();
+    $self->check_threshold_overload();
 }
 
 sub get_severity {
@@ -168,4 +168,4 @@ Example: --threshold-overload='peer,critical,active' --threshold-overload='curre
 
 =back
 
-=cut
+=cut