Fix typos

Change-Id: Iaaf12d276fb890e5ac860e79c5dc196d7e8680d8
Reviewed-on: https://gerrit.libreoffice.org/58435Reviewed-by: Julien Nabet <serval2412@yahoo.fr>
Tested-by: Jenkins

extensions/source/ole/oleobjw.cxx

@@ -1697,7 +1697,7 @@ Any  IUnknownWrapper::invokeWithDispIdComTlb(FuncDesc& aFuncDesc,
             dispparams.cArgs = aFuncDesc->cParams;
     }
 
-    //check if there are not to many arguments supplied
+    //check if there are not too many arguments supplied
     if (::sal::static_int_cast< sal_uInt32, int >( nUnoArgs ) > dispparams.cArgs)
     {
         OUStringBuffer buf(256);

sc/source/filter/oox/stylesbuffer.cxx

@@ -1936,7 +1936,7 @@ void Xf::importXf( const AttributeList& rAttribs, bool bCellXf )
     // tdf#70565 Set proper default value to "0" of xfId attribute
     // When xfId is not exist during .xlsx import
     // it must have values set to "0".
-    // Is is not impacts spreadsheets created with MS Excel,
+    // This doesn't impact spreadsheets created with MS Excel,
     // as xfId attribute is always created during export to .xlsx
     // Not setting "0" value is causing wrong .xlsx import by LibreOffice,
     // for spreadsheets created by external applications (ex. SAP BI).