'pMap' may be used uninitialized in this function.

Change-Id: I4085801a773626824ddc5bc4fbca62240fcc171c

desktop/source/lib/init.cxx

@@ -321,6 +321,7 @@ static int doc_saveAs(LibreOfficeKitDocument* pThis, const char* sUrl, const cha
             pMap = (const ExtensionMap*) aWriterExtensionMap;
             break;
         case LOK_DOCTYPE_OTHER:
+        default:
             return false;
         }