rem: free(fwin->title);
add: wfree(fwin->title);
context: wFrameWindowChangeTitle(WFrameWindow *fwin, char *new_title){    /* check if the title is the same as before */    if (fwin->title) {        if (new_title && (strcmp(fwin->title, new_title) == 0)) {	    return 0;	}    } else {        if (!new_title)           return 0;    }    if (fwin->title)	free(fwin->title);        fwin->title = wstrdup(new_title);        if (fwin->titlebar) {	XClearWindow(dpy, fwin->titlebar->window);	wFrameWindowPaint(fwin);    }    checkTitleSize(fwin);        return 1;}