testthredds: fix typo in catalog.xml in previous commit

Cherry-pick from 936a8ee

Author: tlvu

birdhouse/optional-components/testthredds/catalog.xml.template

@@ -11,8 +11,8 @@
         <service name="iso" serviceType="ISO" base="/${TESTTHREDDS_CONTEXT_ROOT}/iso/"/>
         <service name="wcs" serviceType="WCS" base="/${TESTTHREDDS_CONTEXT_ROOT}/wcs/" />
         <service name="wms" serviceType="WMS" base="/${TESTTHREDDS_CONTEXT_ROOT}/wms/" />
-        <service name="ncssGrid" serviceType="NetcdfSubset" base="${TESTTHREDDS_CONTEXT_ROOT}/ncss/grid/" />
-        <service name="ncssPoint" serviceType="NetcdfSubset" base="${TESTTHREDDS_CONTEXT_ROOT/ncss/point/" />
+        <service name="ncssGrid" serviceType="NetcdfSubset" base="/${TESTTHREDDS_CONTEXT_ROOT}/ncss/grid/" />
+        <service name="ncssPoint" serviceType="NetcdfSubset" base="/${TESTTHREDDS_CONTEXT_ROOT}/ncss/point/" />
     </service>
 
     <datasetScan name="TestDatasets" ID="testdatasets" path="testdatasets" location="/pavics-testdata">