if I don't do this (actually I use magit to select each hunk to stage, but that's just add -p with a fancy interface) then I'll accidentally commit testing log

if I don't do this (actually I use magit to select each hunk to stage, but that's just add -p with a fancy interface) then I'll accidentally commit testing log lines and that sort of experimental code I never, ever commit -a. That flag horrifies me. I want to choose, specifically, each line of code that I am going to publish.