Update scan-server to only alert on large boot time changes

Signed-off-by: digimer <mkelly@alteeve.ca>

scancore-agents/scan-server/scan-server

@@ -821,6 +821,15 @@ sub collect_data
 			}
 		}
 		if ($server_boot_time ne $old_server_boot_time)
+		{
+			# What's the difference? If it's only a few seconds, don't do anything.
+			$server_boot_time     = 1 if not $server_boot_time;
+			$old_server_boot_time = 1 if not $old_server_boot_time;
+			my $diffrerence =  $server_boot_time - $old_server_boot_time;
+			   $diffrerence =~ s/^-//;
+			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { diffrerence => $diffrerence }});
+			
+			if ($diffrerence > 5)
 			{
 				# Boot time changed (expected on shut down or boot up)
 				my $variables  = { 
@@ -835,6 +844,7 @@ sub collect_data
 				$update = 1;
 				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { update => $update }});
 			}
+		}
 		if ($server_anvil_uuid ne $old_server_anvil_uuid)
 		{
 			# Moved between Anvil! systems