How do I split a "/proc/*/environ" file in separate lines?

I'm trying to get the content of any /proc/*PID*/environ file in more readable format. I'm able to do that in the way shown below, but I'm sure this isn't the proper way. $ cat "/proc/$(pgrep gnome-session -n -U $UID)/environ" USER=spasTEXTDOMAIN=im-configXDG_SEAT=seat0XDG_SESSION_TYPE=waylandSHLVL=1QT4_IM_MODULE=ximHOME=/home/spasDESKTOP_SESSION=ubuntuGNOME_SHELL_SESSION_MODE=ubuntuDBUS_SESSION_B

[HHR]

“xargs -0 -L1 -a /proc/self/environ”

[kkindoh]

[Linux] [/proc] [environment]

[progrhyme]

null文字区切りだったのか。なるほど