tdf#118517: Use xStg before resetting it

Regression from 0f166ef5
Change-Id: I083951700895a00be8d4407871c27804ca3e5f30
Reviewed-on: https://gerrit.libreoffice.org/57881Reviewed-by: Julien Nabet <serval2412@yahoo.fr>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
Tested-by: Noel Grandin <noel.grandin@collabora.co.uk>

editeng/source/misc/svxacorr.cxx

@@ -2568,9 +2568,9 @@ void SvxAutoCorrectLanguageLists::PutText( const OUString& rShort,
     try
     {
         uno::Reference < embed::XStorage > xStg = comphelper::OStorageHelper::GetStorageFromURL( sUserAutoCorrFile, embed::ElementModes::READWRITE );
+        bool bRet = rAutoCorrect.PutText( xStg, sUserAutoCorrFile, rShort, rShell, sLong );
         xStg = nullptr;
 
-        bool bRet = rAutoCorrect.PutText( xStg, sUserAutoCorrFile, rShort, rShell, sLong );
         // Update the word list
         if( bRet )
         {