Inline Regexp.union, like upstream.
Inline Regexp.union, like upstream.

JuanitoFatas/slim,ericboehs/slim,slim-template/slim,mojavelinux/slim,sideci-sample/sideci-sample-slim,ruijsun/slim,zakuro9715/slim,fly19890211/slim,etdev/slim,metallurgical/slim,metallurgical/slim,mojavelinux/slim,ruijsun/slim,slim-template/slim,etdev/slim,zakuro9715/slim,Nikeshsuwal/slim,XueQian/slim,slim-template/slim,cheunghy/slim,JuanitoFatas/slim,raxoft/slim,fly19890211/slim,raxoft/slim,ericboehs/slim,cheunghy/slim,Nikeshsuwal/slim,XueQian/slim