-Bad line 52 in /etc/environment ': not a valid identifier-该怎么处理

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*  Welcome to AIX Version 6.1!                                                *
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*  Please see the README file in /usr/lpp/bos for information pertinent to    *
*  this release of the AIX Operating System.                                  *
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Bad line 52 in /etc/environment
': not a valid identifier

# @(#)18      1.26  src/bos/etc/environment/environment, cmdsh, bos61B, b2007_34A0 7/23/07 09:46:21
# IBM_PROLOG_BEGIN_TAG 
# This is an automatically generated prolog. 
#  
# bos61B src/bos/etc/environment/environment 1.26 
#  
# Licensed Materials - Property of IBM 
#  
# COPYRIGHT International Business Machines Corp. 1989,1994 
# All Rights Reserved 
#  
# US Government Users Restricted Rights - Use, duplication or 
# disclosure restricted by GSA ADP Schedule Contract with IBM Corp. 
#  
# IBM_PROLOG_END_TAG 
#
# COMPONENT_NAME: (CMDSH) Shell related commands 
#
# ORIGINS: 27
#
# (C) COPYRIGHT International Business Machines Corp. 1989, 1994
# All Rights Reserved
# Licensed Materials - Property of IBM
#
# US Government Users Restricted Rights - Use, duplication or
# disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
#
################################################################
# System wide environment file.  This file should only contain
#     1.  comment lines which have a # in the first column,
#     2.  blank lines, and
#     3.  Lines in the form name=value.
#
# WARNING: This file is only for establishing environment variables.
#          Execution of commands from this file or any lines other
#          than specified above may cause failure of the initialization 
#       process.
#
# Searching the current directory last is usually a BIG time saver.
# If /usr/ucb is at the beginning of the PATH the BSD version of commands will
# be found. 
#

JAVA_HOME=/usr/java6
JDK_HOME=$JAVA_HOME

  
 

PATH=/usr/bin:/etc:/usr/sbin:/usr/ucb:/usr/bin/X11:/sbin:$JAVA_HOME/bin:$PATH

export PATH JAVA_HOME JDK_HOME

TZ=Asia/Chongqing
LANG=ZH_CN
LOCPATH=/usr/lib/nls/loc
NLSPATH=/usr/lib/nls/msg/%L/%N:/usr/lib/nls/msg/%L/%N.cat
LC__FASTMSG=true

# ODM routines use ODMDIR to determine which objects to operate on
# the default is /etc/objrepos - this is where the device objects
# reside, which are required for hardware configuration

ODMDIR=/etc/objrepos
LC_MESSAGES=C@lft