IMPALA-2139: Correct IMPALA_AUX_TEST_HOME default
IMPALA-2139: Correct IMPALA_AUX_TEST_HOME default

Capitalize default for IMPALA_AUX_TEST_HOME in
bin/impala-config.sh so that it correctly matches the directory name.

The jenkins scripts will not be affected because they explicitly set
the variable and already use the correct capitalization.

Change-Id: I674ddfd38bc1a13721674e433e03cc66baad2cfc
Reviewed-on: http://gerrit.cloudera.org:8080/543
Reviewed-by: Dan Hecht <20ebd99959f0f6e5dcb0fc319b4d8ef53a16b5fb@cloudera.com>
Tested-by: Internal Jenkins

lnliuxing/Impala,kapilrastogi/Impala,gerashegalov/Impala,lnliuxing/Impala,tempbottle/Impala,cgvarela/Impala,XiaominZhang/Impala,tempbottle/Impala,theyaa/Impala,bratatidas9/Impala-1,caseyching/Impala,bratatidas9/Impala-1,kapilrastogi/Impala,caseyching/Impala,bowlofstew/Impala,bowlofstew/Impala,gerashegalov/Impala,rdblue/Impala,rdblue/Impala,lirui-intel/Impala,cgvarela/Impala,caseyching/Impala,tempbottle/Impala,cgvarela/Impala,XiaominZhang/Impala,theyaa/Impala,kapilrastogi/Impala,XiaominZhang/Impala,kapilrastogi/Impala,tempbottle/Impala,brightchen/Impala,bowlofstew/Impala,brightchen/Impala,rdblue/Impala,lirui-intel/Impala,tempbottle/Impala,kapilrastogi/Impala,cgvarela/Impala,cgvarela/Impala,rdblue/Impala,lirui-intel/Impala,XiaominZhang/Impala,bowlofstew/Impala,bowlofstew/Impala,kapilrastogi/Impala,bratatidas9/Impala-1,rdblue/Impala,lnliuxing/Impala,gerashegalov/Impala,bowlofstew/Impala,caseyching/Impala,cchanning/Impala,kapilrastogi/Impala,bratatidas9/Impala-1,lirui-intel/Impala,XiaominZhang/Impala,lnliuxing/Impala,XiaominZhang/Impala,gerashegalov/Impala,cchanning/Impala,brightchen/Impala,bowlofstew/Impala,lirui-intel/Impala,gerashegalov/Impala,theyaa/Impala,bratatidas9/Impala-1,lnliuxing/Impala,brightchen/Impala,lnliuxing/Impala,theyaa/Impala,brightchen/Impala,theyaa/Impala,brightchen/Impala,cchanning/Impala,theyaa/Impala,caseyching/Impala,brightchen/Impala,theyaa/Impala,caseyching/Impala,gerashegalov/Impala,lnliuxing/Impala,cchanning/Impala,tempbottle/Impala,cchanning/Impala,rdblue/Impala,gerashegalov/Impala,caseyching/Impala,cgvarela/Impala,XiaominZhang/Impala,bratatidas9/Impala-1,cchanning/Impala,bratatidas9/Impala-1,cchanning/Impala,tempbottle/Impala,lirui-intel/Impala,lirui-intel/Impala,cgvarela/Impala,rdblue/Impala