I'm finding that when I have a long one-liner, bash 4.4 will scroll horizontally instead of wrapping to the next line. Some people may prefer this behavior, but I don't.
I tried fiddling with horizontal-scroll-mode, but that didn't appear to help.
I don't think it's an issue with my startup files, because /bin/bash (4.3.11) doesn't exhibit the different behavior - even if I set horizontal-scroll-mode On.