fix white spaces to comply with upstream
fix white spaces to comply with upstream

rachetfoot/MathJax-rhino,episodeyang/MathJax-node,rachetfoot/MathJax-rhino,physikerwelt/MathJax-node,ghostxt/MathJax-node,rachetfoot/MathJax-rhino,episodeyang/MathJax-node,wikimedia/MathJax-node,mathjax/MathJax-node,pkra/MathJax-node,benetech/MathJax-node,physikerwelt/MathJax-node,wikimedia/MathJax-node,benetech/MathJax-node,ghostxt/MathJax-node