Port GNU Readline-5.2 patch-013
Port GNU Readline-5.2 patch-013

The message from the GNU commit[1] is:

-----
Bug-Reported-by:	slinkp <stuff@slinkp.com>
Bug-Reference-ID:
<da52a26a-9f38-4861-a918-14d3482b539d@c65g2000hsa.googlegroups.com>
Bug-Reference-URL:
http://lists.gnu.org/archive/html/bug-bash/2008-05/msg00085.html

Bug-Description:

The presence of invisible characters in a prompt longer than the
screenwidth with invisible characters on the first and last prompt lines
caused readline to place the cursor in the wrong physical location.
-----

1 - http://ftp.gnu.org/gnu/readline/readline-5.2-patches/readline52-013

Tested-by: Mark Somerville <26cc3217be640e8220112c25628da6e11c78db95@pccl.info> [F17, MRI 2.0.0-preview2]
Signed-off-by: Mark Somerville <f1b5a91d4d6ad523f2610114591c007e75d15084@scottishclimbs.com>

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