Fix typo

Change-Id: Ib5409a3c9b22bf0caf950905a75559bdef8b057f
Reviewed-on: https://gerrit.libreoffice.org/68612
Tested-by: Jenkins
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>

cppu/source/threadpool/threadpool.cxx

@@ -417,7 +417,7 @@ uno_threadpool_enter( uno_ThreadPool hPool , void **ppJob )
 extern "C" void SAL_CALL
 uno_threadpool_detach(SAL_UNUSED_PARAMETER uno_ThreadPool) SAL_THROW_EXTERN_C()
 {
-    // we might do here some tiding up in case a thread called attach but never detach
+    // we might do here some tidying up in case a thread called attach but never detach
 }
 
 extern "C" void SAL_CALL