fix(bash): fix loss of the last output line with enter_accept (#1463)

With a single-line prompt, the last line of the output of the previous
command is overwritten by the prompt on the enter_accept.  In this
situation, `tput cuu` receives 0 as the argument, but `tput cuu 0`
emits the control sequence `\e[0A`, which moves the cursor above by
one line unexpectedly.  This is because the parameter 0 for CUU means
the default value, 1.  In this patch, to avoid moving the cursor when
the prompt offset is 0, we check the offset value before running `tput
cuu`.

0 files changed, 0 insertions, 0 deletions