More loplugin:simplifybool

Change-Id: Ifa8a855fc870a55fda8d801c22c15b0bc441fbe6

sfx2/source/appl/opengrf.cxx

@@ -111,7 +111,7 @@ short SvxOpenGraphicDialog::Execute()
     sal_uInt16  nImpRet;
     bool    bQuitLoop(false);
 
-    while( bQuitLoop == false &&
+    while( !bQuitLoop &&
            mpImpl->aFileDlg.Execute() == ERRCODE_NONE )
     {
         if( !GetPath().isEmpty() )

sfx2/source/dialog/mailmodel.cxx

@@ -851,7 +851,7 @@ SfxMailModel::SendMailResult SfxMailModel::Send( const css::uno::Reference< css:
                 {
                 }
 
-                if ( bSend == false )
+                if ( !bSend )
                 {
                     css::uno::Reference< css::awt::XWindow > xParentWindow = xFrame->getContainerWindow();
 

sfx2/source/doc/SfxDocumentMetaData.cxx

@@ -2171,7 +2171,7 @@ sal_Bool SAL_CALL SfxDocumentMetaData::isModified(  )
     checkInit();
     css::uno::Reference<css::util::XModifiable> xMB(m_xUserDefined,
         css::uno::UNO_QUERY);
-    return m_isModified || (xMB.is() ? xMB->isModified() : false);
+    return m_isModified || (xMB.is() && xMB->isModified());
 }
 
 void SAL_CALL SfxDocumentMetaData::setModified( sal_Bool bModified )