Description of problem:
ncftp crashes when locale is fi_FI.UTF-8 and trying to list the contents of a
remote directory (using 'dir'). The crash probably has something to do with
non-ASCII letters in month names.

Version-Release number of selected component (if applicable):
ncftp-3.1.9-3

How reproducible:
Every time, when the directory contains a file with a timestamp from a certain
month.

Steps to Reproduce:
1. Connect to a server, e.g. LC_ALL=fi_FI.UTF-8 ncftp ftp.funet.fi
2. say 'dir'
3. *crash*
  
Actual results:

Logged in to ftp.funet.fi.
ncftp / > dir
drwxr-xr-x                maalis 15 23:54   dev
drwxr-xr-x                maalis 29 23:11   index
drwxrwxr-x                maalis 29 22:16   pub
-rw-r--r--        19796   maalis 30 00:23   README
-rw-r--r--         5524   elo    24  2000   README.FILETYPES
-rw-r--r--         5120   marras 20  1996   README.UPLOADER
drwxr-xr-x                huhti   1 17:16   rfc
*** stack smashing detected ***: /usr/bin/ncftp terminated


With a version with debug symbols we can see a backtrace:

Program received signal SIGSEGV, Segmentation fault.
0x0013ec46 in vfprintf () from /lib/libc.so.6
(gdb) bt
#0  0x0013ec46 in vfprintf () from /lib/libc.so.6
#1  0x00144282 in fprintf () from /lib/libc.so.6
#2  0x080539d6 in LsL (dirp=0xbfad9548, endChars=0, linkedTo=0,
    stream=0x2304c0) at ls.c:390
#3  0x08054014 in Ls (item=0x0, listmode=108, options=0xbfad97f8 "",
    stream=0x2304c0) at ls.c:620
#4  0x0804d2a2 in ListCmd (argc=1, argv=0xbfad98d4, cmdp=0x80897e0,
    aip=0xbfad98d4) at cmds.c:1550
#5  0x08055670 in DoCommand (aip=0xbfad98d4) at shell.c:408
#6  0x08055a0d in CommandShell () at shell.c:582
#7  0x08054e59 in main (argc=2, argv=0xbfada9e4) at main.c:492


Expected results:
No crash.

Additional info:
I tested a few other locales besides fi_FI.UTF-8, but no crash with them.