tdf#124176 Use pragma once

Change-Id: I58e9a50587d2f815ca09939a650debaa9a0a4969
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/113187
Tested-by: Jenkins
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>
diff --git a/include/vcl/syswin.hxx b/include/vcl/syswin.hxx
index 7c6f279..7108bc2 100644
--- a/include/vcl/syswin.hxx
+++ b/include/vcl/syswin.hxx
@@ -17,8 +17,7 @@
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#ifndef INCLUDED_VCL_SYSWIN_HXX
#define INCLUDED_VCL_SYSWIN_HXX
#pragma once

#include <vcl/dllapi.h>
#include <vcl/idle.hxx>
@@ -253,6 +252,5 @@
    maLayoutIdle.SetDebugName( pDebugName );
}

#endif // INCLUDED_VCL_SYSWIN_HXX

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */