[Bug 1509081] [NEW] nano segfaults as root after upgrade to 15.10

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You have been subscribed to a public bug by Sebastien Bacher (seb128):

Description:	Ubuntu 15.10
Release:	15.10

nano:
  Installed: 2.4.2-1
  Candidate: 2.4.2-1
  Version table:
 *** 2.4.2-1 0
        500 http://mirror.bytemark.co.uk/ubuntu/ wily/main amd64 Packages
        100 /var/lib/dpkg/status


After upgrading Ubuntu 15.04 to 15.10, when I run nano as root on a file it just segfaults. I'm not having this problem on other 15.04->15.10 upgrades

strace is https://p.defau.lt/?q7xGwt3HoqB74xTawUUHDA
catchsegv is https://p.defau.lt/?0SPQY_bDj6F6j1ZKeToQoA


Under gdb with nano-dbgsym installed, it gives

#0  main (argc=2, argv=0x7fffffffe688) at ../../src/nano.c:2768


If I run it as sudo nano filename.txt, it gives an error as below rather than segfaulting

[ Couldn't determine hostname for lock file: File name too long ]


Both my user and root have the same locale settings. I've tried
regenerating the locales

** Affects: nano (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: patch patch-accepted-upstream
-- 
nano segfaults as root after upgrade to 15.10
https://bugs.launchpad.net/bugs/1509081
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