Update srv_tiler.sh (#188)

See #187 for details. 
With #174 a typo was made when editting this file. The variable $REG  was replaced by $IREG which doesn't exist. I changed back to $REG.

scripts/srv_tiler.sh

@@ -166,7 +166,7 @@ while read RES UNIT DST_TILE_SIZE CHUNK MASTER ; do
 				MSG="${TITLE} at ${RES}x${RES} arc ${UNAME} reduced by Gaussian ${DST_MODE} filtering (${FILTER_WIDTH} km fullwidth)"
 			fi
 			printf "/server/%s/%s/\t%s_%s_%s/\t%s\t%s\t%s\t%s\t%4s\t%s\t%s\t-\t-\t%s\t%s [%s]\n" \
-				${DST_PLANET} ${DST_PREFIX} ${DST_PREFIX} ${TAG} ${IREG} ${TAG} ${REG} ${DST_SCALE} ${DST_OFFSET} ${SIZE} ${DST_TILE_SIZE} ${creation_date} ${DST_CPT} "${MSG}" "${CITE}" >> ${DST_PREFIX}_server.txt
+				${DST_PLANET} ${DST_PREFIX} ${DST_PREFIX} ${TAG} ${RES} ${TAG} ${REG} ${DST_SCALE} ${DST_OFFSET} ${SIZE} ${DST_TILE_SIZE} ${creation_date} ${DST_CPT} "${MSG}" "${CITE}" >> ${DST_PREFIX}_server.txt
 
 			# Move the tiled grid away from this tree
 			mkdir -p ${TOPDIR}/staging/tiled