Port GNU Readline-5.2 patch-008
Port GNU Readline-5.2 patch-008

The message from the GNU commit[1] is:

-----
Bug-Reported-by:	dAniel hAhler <ubuntu@thequod.de>
Bug-Reference-ID:	<4702ED8A.5000503@thequod.de>
Bug-Reference-URL:
https://bugs.launchpad.net/ubuntu/+source/bash/+bug/119938

Bug-Description:

When updating the display after displaying, for instance, a list of possible
completions, readline will place the cursor at the wrong position if the
prompt contains invisible characters and a newline.
-----

1 - http://ftp.gnu.org/gnu/readline/readline-5.2-patches/readline52-008

Tested-by: Mark Somerville <f1b5a91d4d6ad523f2610114591c007e75d15084@scottishclimbs.com> [F17, MRI 1.9.3]
Signed-off-by: Mark Somerville <f1b5a91d4d6ad523f2610114591c007e75d15084@scottishclimbs.com>

ConnorAtherton/rb-readline,rapid7/rb-readline,abinoam/rb-readline