fix: wrap all output and status variables in quotes

This will ensure newlines are replaced when these variables are output for debugging tests

tests/unit/40_core_2.bats

@@ -16,8 +16,8 @@ teardown() {
 assert_urls() {
   urls=$@
   run /bin/bash -c "dokku urls $TEST_APP"
-  echo "output: "$output
-  echo "status: "$status
+  echo "output: $output"
+  echo "status: $status"
   echo "urls:" $(tr ' ' '\n' <<< "${urls}" | sort)
   assert_output < <(tr ' ' '\n' <<< "${urls}" | sort)
 }
@@ -25,8 +25,8 @@ assert_urls() {
 assert_url() {
   url=$1
   run /bin/bash -c "dokku url $TEST_APP"
-  echo "output: "$output
-  echo "status: "$status
+  echo "output: $output"
+  echo "status: $status"
   echo "url: ${url}"
   assert_output "${url}"
 }
@@ -34,25 +34,25 @@ assert_url() {
 @test "(core) run (with --options)" {
   deploy_app
   run /bin/bash -c "dokku --force --quiet run $TEST_APP node --version"
-  echo "output: "$output
-  echo "status: "$status
+  echo "output: $output"
+  echo "status: $status"
   assert_success
 }
 
 @test "(core) unknown command" {
   run /bin/bash -c "dokku fakecommand"
-  echo "output: "$output
-  echo "status: "$status
+  echo "output: $output"
+  echo "status: $status"
   assert_failure
 
   run /bin/bash -c "dokku fakecommand 2>&1 | grep -q 'is not a dokku command'"
-  echo "output: "$output
-  echo "status: "$status
+  echo "output: $output"
+  echo "status: $status"
   assert_success
 
   run /bin/bash -c "dokku apps: 2>&1 | grep -q 'is not a dokku command'"
-  echo "output: "$output
-  echo "status: "$status
+  echo "output: $output"
+  echo "status: $status"
   assert_success
 }
 
@@ -93,14 +93,14 @@ assert_url() {
 
 @test "(core) git-remote (off-port)" {
   run deploy_app nodejs-express ssh://dokku@127.0.0.1:22333/$TEST_APP
-  echo "output: "$output
-  echo "status: "$status
+  echo "output: $output"
+  echo "status: $status"
   assert_success
 }
 
 @test "(core) git-remote (bad name)" {
   run deploy_app nodejs-express ssh://dokku@127.0.0.1:22333/home/dokku/$TEST_APP
-  echo "output: "$output
-  echo "status: "$status
+  echo "output: $output"
+  echo "status: $status"
   assert_failure
 }