With -J in $LESS, less draws a status column two characters wide on the left, so lines that bat already wrapped to the terminal width wrap a second time and the rest of them ends up over the line numbers. Reset the option with -+J next to the other default less arguments and skip it for BusyBox less like -K, since it does not support it either. +J does not work here, less runs it as the J command on startup. Closes #2497