Adapt cast

...to 0d227c96 "SvxNumberFormat::nAbsLSpace
should have a larger type", from which this was accidentally missing

Change-Id: I1d84f8f3545512ca47181b40b56effda39894e67
Reviewed-on: https://gerrit.libreoffice.org/59160
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

editeng/source/items/numitem.cxx

@@ -450,7 +450,7 @@ sal_Int32 SvxNumberFormat::GetAbsLSpace() const
 {
     return mePositionAndSpaceMode == LABEL_WIDTH_AND_POSITION
            ? nAbsLSpace
-           : static_cast<short>( GetFirstLineIndent() + GetIndentAt() );
+           : static_cast<sal_Int32>( GetFirstLineIndent() + GetIndentAt() );
 }
 short SvxNumberFormat::GetFirstLineOffset() const
 {