1.x: ignore .pmd file in root directory (#4065)
1.x: ignore .pmd file in root directory (#4065)


jacek-rzrz/RxJava,weikipeng/RxJava,nurkiewicz/RxJava,hzysoft/RxJava,weikipeng/RxJava,hzysoft/RxJava,jacek-rzrz/RxJava,nurkiewicz/RxJava,davidmoten/RxJava,hzysoft/RxJava,tilal6991/RxJava,weikipeng/RxJava,tilal6991/RxJava,davidmoten/RxJava,jacek-rzrz/RxJava,nurkiewicz/RxJava,davidmoten/RxJava,tilal6991/RxJava