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<?php $labels_array=array("199,","99","79,","59","23,","98"); echo implode(",\n",array_map(function($i){ return implode(", ",$i); },array_chunk($labels_array,2)));
Output for git.master, git.master_jit, rfc.property-hooks
199,, 99, 79,, 59, 23,, 98

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