Fix typo

Change-Id: I1a8df45bbc595b11e1a8279d6413c15f75518bb4
Reviewed-on: https://gerrit.libreoffice.org/72996Reviewed-by: Julien Nabet <serval2412@yahoo.fr>
Tested-by: Julien Nabet <serval2412@yahoo.fr>

filter/source/config/cache/cacheitem.hxx

@@ -117,7 +117,7 @@ class CacheItem : public ::comphelper::SequenceAsHashMap
 
             @param  sActLocale
                     must specify the current office locale.
-                    Its needed to address the UIName property inside
+                    It's needed to address the UIName property inside
                     the list of possible ones.
          */
         void validateUINames(const OUString& sActLocale);