Fix typos

Change-Id: I17d6a674fbe7b5eebd21cad5a9491c129679e5c1
Reviewed-on: https://gerrit.libreoffice.org/55117Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>

extensions/source/ole/unoobjw.cxx

@@ -2339,7 +2339,7 @@ Sink::Call( const OUString& Method, Sequence< Any >& Arguments )
         }
         nMemId++;
     }
-    SAL_WARN("extensions.olebridge", "Sink::Call: Uknown method '" << Method << "'");
+    SAL_WARN("extensions.olebridge", "Sink::Call: Unknown method '" << Method << "'");
 }
 
 class CXEnumConnections : public IEnumConnections,