Allow e/pi in comparison line expressions
Allow e/pi in comparison line expressions

aaldaber/owid-grapher,owid/owid-grapher,OurWorldInData/owid-grapher,OurWorldInData/our-world-in-data-grapher,OurWorldInData/owid-grapher,aaldaber/owid-grapher,OurWorldInData/our-world-in-data-grapher,owid/owid-grapher,owid/owid-grapher,OurWorldInData/owid-grapher,aaldaber/owid-grapher,aaldaber/owid-grapher,owid/owid-grapher,OurWorldInData/our-world-in-data-grapher,OurWorldInData/owid-grapher,OurWorldInData/our-world-in-data-grapher,owid/owid-grapher,aaldaber/owid-grapher,OurWorldInData/owid-grapher