space before comma in categories list

Tymoteusz Motylewski reported an issue

the space before comma in article category list is very disturbing :) please remove it.

Categories: Development , Community , TYPO3 CMS

Reported URL:https://new.typo3.org/article/introducing-strategic-typo3-development-initiatives/

User Agent:Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.162 Safari/537.36