fix crash on quit

Author: jef-n

src/app/qgisapp.cpp

@@ -1679,6 +1679,7 @@ void QgisApp::createCanvasTools()
 #else
   mAdvancedDigitizeToolBar->removeAction( mActionOffsetCurve );
   mEditMenu->removeAction( mActionOffsetCurve );
+  mMapTools.mOffsetCurve = 0;
 #endif //GEOS_VERSION
   mMapTools.mReshapeFeatures = new QgsMapToolReshape( mMapCanvas );
   mMapTools.mReshapeFeatures->setAction( mActionReshapeFeatures );

src/gui/qgsexpressionbuilderwidget.cpp

@@ -415,7 +415,7 @@ QString QgsExpressionBuilderWidget::loadFunctionHelp( QgsExpressionItem* functio
 
   QString missingError = tr( "<h3>Oops! QGIS can't find help for this function.</h3>"
                              "The help file for %1 was not found.<br>"
-														 ).arg( Qt::escape( name ) );
+                           ).arg( Qt::escape( name ) );
 
   if ( !lang.startsWith( "en_" ) )
   {