What's the purpose of this change? Is it preparation for a new feature?
https://codereview.appspot.com/581470047/diff/565490043/lily/page-breaking.cc File lily/page-breaking.cc (right): https://codereview.appspot.com/581470047/diff/565490043/lily/page-breaking.cc#newcode624 lily/page-breaking.cc:624: for (SCM l = lines; scm_is_pair (l); l = scm_cdr (l)) Veto! I've had more than one bad experience with lowercase ell. In one case--I think it was elsewhere in LilyPond--it was purely a readability issue, but reason enough to avoid it. In the other, one person *thought* that he was using it as a loop variable (i, j, k, l, ...), though he was actually using it outside its loop. His code compiled anyway because another person had defined a global of the same name. Thankfully, I don't work at that company anymore. I suggest "SCM line = lines;" as an alternative. https://codereview.appspot.com/581470047/
