fix typo in esgf_publish_nctxcx.sh preventing correct selection of local image...

fix typo in esgf_publish_nctxcx.sh preventing correct selection of local image under --local operation

esgf_publish_nctxck.sh

@@ -71,7 +71,7 @@ datadir=$2;
 additionalargs="$3";
 localmode=$4;
 if [ "$localmode" = "--local" ]; then
-NCTCHKMIMAGE=${ESGF_NCTCHKIMAGE_LOCAL};
+NCTCHKIMAGE=${ESGF_NCTCHKIMAGE_LOCAL};
 fi
 template=`dirname $0`/`basename $0 .sh`.job
 datetime=`date +%Y%m%d`