json: correctly handle array of Char_t, not always write as string
json: correctly handle array of Char_t, not always write as string

Signed-off-by: Bertrand Bellenot <6715f273cb2881a3bfbd56f899a7173358fb0b89@cern.ch>

karies/root,zzxuanyuan/root,sawenzel/root,krafczyk/root,sawenzel/root,davidlt/root,zzxuanyuan/root,mhuwiler/rootauto,karies/root,georgtroska/root,gbitzes/root,gganis/root,gbitzes/root,thomaskeck/root,buuck/root,zzxuanyuan/root,pspe/root,krafczyk/root,Y--/root,pspe/root,veprbl/root,zzxuanyuan/root,mhuwiler/rootauto,satyarth934/root,veprbl/root,georgtroska/root,CristinaCristescu/root,root-mirror/root,root-mirror/root,root-mirror/root,abhinavmoudgil95/root,georgtroska/root,Y--/root,karies/root,buuck/root,zzxuanyuan/root,pspe/root,zzxuanyuan/root,beniz/root,veprbl/root,zzxuanyuan/root-compressor-dummy,thomaskeck/root,beniz/root,krafczyk/root,agarciamontoro/root,sawenzel/root,sawenzel/root,veprbl/root,georgtroska/root,davidlt/root,agarciamontoro/root,veprbl/root,krafczyk/root,bbockelm/root,gganis/root,karies/root,Y--/root,BerserkerTroll/root,beniz/root,beniz/root,mhuwiler/rootauto,Y--/root,veprbl/root,zzxuanyuan/root-compressor-dummy,zzxuanyuan/root-compressor-dummy,satyarth934/root,gganis/root,gganis/root,davidlt/root,BerserkerTroll/root,karies/root,simonpf/root,krafczyk/root,gganis/root,olifre/root,agarciamontoro/root,simonpf/root,gganis/root,Y--/root,georgtroska/root,karies/root,mhuwiler/rootauto,davidlt/root,gbitzes/root,bbockelm/root,pspe/root,mhuwiler/rootauto,BerserkerTroll/root,pspe/root,gganis/root,BerserkerTroll/root,davidlt/root,karies/root,abhinavmoudgil95/root,zzxuanyuan/root,gbitzes/root,lgiommi/root,buuck/root,bbockelm/root,agarciamontoro/root,thomaskeck/root,davidlt/root,zzxuanyuan/root,buuck/root,beniz/root,abhinavmoudgil95/root,agarciamontoro/root,georgtroska/root,pspe/root,davidlt/root,CristinaCristescu/root,zzxuanyuan/root,olifre/root,pspe/root,abhinavmoudgil95/root,satyarth934/root,gbitzes/root,mhuwiler/rootauto,bbockelm/root,simonpf/root,veprbl/root,root-mirror/root,gbitzes/root,krafczyk/root,bbockelm/root,zzxuanyuan/root-compressor-dummy,gbitzes/root,olifre/root,CristinaCristescu/root,thomaskeck/root,pspe/root,zzxuanyuan/root,mhuwiler/rootauto,bbockelm/root,karies/root,beniz/root,veprbl/root,gganis/root,BerserkerTroll/root,zzxuanyuan/root,bbockelm/root,simonpf/root,karies/root,thomaskeck/root,pspe/root,olifre/root,agarciamontoro/root,simonpf/root,davidlt/root,olifre/root,buuck/root,gganis/root,krafczyk/root,root-mirror/root,BerserkerTroll/root,root-mirror/root,thomaskeck/root,BerserkerTroll/root,beniz/root,CristinaCristescu/root,buuck/root,veprbl/root,abhinavmoudgil95/root,mhuwiler/rootauto,zzxuanyuan/root-compressor-dummy,bbockelm/root,abhinavmoudgil95/root,Y--/root,Y--/root,thomaskeck/root,gbitzes/root,abhinavmoudgil95/root,davidlt/root,beniz/root,CristinaCristescu/root,pspe/root,georgtroska/root,lgiommi/root,satyarth934/root,lgiommi/root,lgiommi/root,gganis/root,bbockelm/root,georgtroska/root,karies/root,buuck/root,georgtroska/root,lgiommi/root,zzxuanyuan/root-compressor-dummy,thomaskeck/root,krafczyk/root,olifre/root,mhuwiler/rootauto,gganis/root,mhuwiler/rootauto,thomaskeck/root,simonpf/root,gbitzes/root,satyarth934/root,abhinavmoudgil95/root,root-mirror/root,beniz/root,agarciamontoro/root,lgiommi/root,georgtroska/root,BerserkerTroll/root,CristinaCristescu/root,beniz/root,simonpf/root,davidlt/root,root-mirror/root,olifre/root,simonpf/root,simonpf/root,zzxuanyuan/root,CristinaCristescu/root,zzxuanyuan/root-compressor-dummy,lgiommi/root,beniz/root,Y--/root,karies/root,satyarth934/root,lgiommi/root,root-mirror/root,zzxuanyuan/root-compressor-dummy,Y--/root,sawenzel/root,agarciamontoro/root,root-mirror/root,veprbl/root,satyarth934/root,krafczyk/root,abhinavmoudgil95/root,CristinaCristescu/root,agarciamontoro/root,satyarth934/root,lgiommi/root,satyarth934/root,sawenzel/root,pspe/root,gbitzes/root,buuck/root,sawenzel/root,CristinaCristescu/root,BerserkerTroll/root,veprbl/root,agarciamontoro/root,zzxuanyuan/root-compressor-dummy,sawenzel/root,davidlt/root,simonpf/root,sawenzel/root,olifre/root,lgiommi/root,zzxuanyuan/root-compressor-dummy,abhinavmoudgil95/root,thomaskeck/root,BerserkerTroll/root,bbockelm/root,bbockelm/root,sawenzel/root,CristinaCristescu/root,root-mirror/root,simonpf/root,lgiommi/root,satyarth934/root,gbitzes/root,buuck/root,olifre/root,agarciamontoro/root,krafczyk/root,zzxuanyuan/root-compressor-dummy,olifre/root,Y--/root,Y--/root,krafczyk/root,buuck/root,buuck/root,olifre/root,abhinavmoudgil95/root,BerserkerTroll/root,sawenzel/root,satyarth934/root,CristinaCristescu/root,georgtroska/root,mhuwiler/rootauto