Minor fixup to comments in test runner (#9)

Author: rfay

tests/test.bats

@@ -1,7 +1,7 @@
 setup() {
   set -eu -o pipefail
   export DIR="$( cd "$( dirname "$BATS_TEST_FILENAME" )" >/dev/null 2>&1 && pwd )/.."
-  export TESTDIR=~/tmp/testelasticsearch
+  export TESTDIR=~/tmp/testmemcached
   mkdir -p $TESTDIR
   export PROJNAME=testmemcached
   export DDEV_NON_INTERACTIVE=true
@@ -31,7 +31,7 @@ teardown() {
 @test "install from release" {
   set -eu -o pipefail
   cd ${TESTDIR} || ( printf "unable to cd to ${TESTDIR}\n" && exit 1 )
-  echo "# ddev get ddev/ddev-elasticsearch with project ${PROJNAME} in ${TESTDIR} ($(pwd))" >&3
+  echo "# ddev get ddev/ddev-memcached with project ${PROJNAME} in ${TESTDIR} ($(pwd))" >&3
   ddev get ddev/ddev-memcached
   ddev restart
   v=$(ddev exec 'printf "version\nquit\nquit\n" | nc memcached 11211')