[3.7] bpo-33000: Document that IDLE's shell has no line limit. (GH-10373)#10374

miss-islington merged 1 commit intopython:3.7python/cpython:3.7from

miss-islington:backport-76cd0c3-3.7miss-islington/cpython:backport-76cd0c3-3.7Copy head branch name to clipboard