if (gSavedLine) free(gSavedLine); gSavedLine = NULL;
void PREF_CleanupPrefs(){    if (gHashTable.ops) {        PL_DHashTableFinish(&gHashTable);        gHashTable.ops = nsnull;        PL_FinishArenaPool(&gPrefNameArena);    }    if (gSavedLine)        free(gSavedLine);    gSavedLine = NULL;}