Update message to more closely align with stock

The regular failure message is
> nodenv: version `12' not installed

We can match that a bit better with:

> package-json-engine: version satisfying \`12' not installed

Author: jasonkarns

etc/nodenv.d/version-name/package-json-engine.bash

@@ -4,7 +4,7 @@
 source "$(plugin_root)/libexec/nodenv-package-json-engine"
 
 if ! NODENV_PACKAGE_JSON_VERSION=$(get_version_respecting_precedence); then
-  echo "package-json-engine: no version satisfying \`$(get_expression_respecting_precedence)' installed" >&2
+  echo "package-json-engine: version satisfying \`$(get_expression_respecting_precedence)' not installed" >&2
   exit 1
 elif [ -n "$NODENV_PACKAGE_JSON_VERSION" ]; then
   export NODENV_VERSION="${NODENV_PACKAGE_JSON_VERSION}"

test/nodenv-package-json-engine.bats

@@ -21,7 +21,7 @@ load test_helper
 
   run nodenv version
   # note the command completes successfully
-  assert_success "package-json-engine: no version satisfying \`^1.0.0' installed
+  assert_success "package-json-engine: version satisfying \`^1.0.0' not installed
  (set by package-json-engine matching ^1.0.0)"
 }