fix unit test that I merged wrong.

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1856653 13f79535-47bb-0310-9956-ffa450edef68

src/ooxml/testcases/org/apache/poi/xssf/usermodel/TestXSSFWorkbook.java

@@ -499,7 +499,7 @@ public final class TestXSSFWorkbook extends BaseTestXWorkbook {
             assertTrue(wb.getForceFormulaRecalculation());
 
             wb.setForceFormulaRecalculation(false);
-            assertTrue(wb.getForceFormulaRecalculation());
+            assertFalse(wb.getForceFormulaRecalculation());
 
             // calcMode="manual" is unset when forceFormulaRecalculation=true
             calcPr.setCalcMode(STCalcMode.MANUAL);