Fix typo

Change-Id: Ia6977b47c3011e18827e173a2f95e5caa04ba774
Reviewed-on: https://gerrit.libreoffice.org/73418
Tested-by: Jenkins
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>

filter/source/xsltfilter/OleHandler.cxx

@@ -86,7 +86,7 @@ namespace XSLT
         Reference<XSeekable> xSeek(m_rootStream->getInputStream(), UNO_QUERY);
         xSeek->seek(0);
 
-        //create an com.sun.star.embed.OLESimpleStorage from the temp stream
+        //create a com.sun.star.embed.OLESimpleStorage from the temp stream
         Sequence<Any> args(1);
         args[0] <<= xSeek;
         Reference<XNameContainer> cont(