-Werror,-Wnon-literal-null-conversion (SwInsertFld_Data ctor)

...also, the "sal_True" argument was probably meant for the
"sal_Bool bIsAutoLanguage = sal_True" parameter rather than the
"sal_Unicode cSep = ' '" one.

Change-Id: Iafa038ffaf37c45d6157f7f14e4d529e65dba501

sw/source/ui/shells/textsh2.cxx

@@ -216,7 +216,7 @@ void SwTextShell::ExecDB(SfxRequest &rReq)
                 sDBName += (String)sColumnName;
 
                 SwFldMgr aFldMgr(GetShellPtr());
-                SwInsertFld_Data aData(TYP_DBFLD, 0, sDBName, aEmptyStr, 0, sal_False, sal_True);
+                SwInsertFld_Data aData(TYP_DBFLD, 0, sDBName, aEmptyStr, 0);
                 if(pConnectionItem)
                     aData.aDBConnection = ((SfxUsrAnyItem*)pConnectionItem)->GetValue();
                 if(pColumnItem)