Fix typo

Change-Id: I27f9b30f76b6bbd255a346c00d64e2499e7f3b5e
Reviewed-on: https://gerrit.libreoffice.org/70360
Tested-by: Jenkins
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>

basic/source/classes/sbxmod.cxx

@@ -1114,7 +1114,7 @@ void SbModule::Run( SbMethod* pMeth )
                 pRt->pNext->unblock();
 
             // #63710 It can happen by an another thread handling at events,
-            // that the show call returns to an dialog (by closing the
+            // that the show call returns to a dialog (by closing the
             // dialog per UI), before a by an event triggered further call returned,
             // which stands in Basic more top in the stack and that had been run on
             // a  Basic-Breakpoint. Then would the instance below destroyed. And if the Basic,