Rename "install" -> "get" and "update" -> "upgrade".

sdk/lib/_internal/pub/test/list_package_dirs/no_lockfile_test.dart

Index: sdk/lib/_internal/pub/test/list_package_dirs/no_lockfile_test.dart
diff --git a/sdk/lib/_internal/pub/test/list_package_dirs/no_lockfile_test.dart b/sdk/lib/_internal/pub/test/list_package_dirs/no_lockfile_test.dart
index 554edd70fe8055307f01459834f428505321b653..5d7446c07575687dd0293e85fe067688f295857d 100644
--- a/sdk/lib/_internal/pub/test/list_package_dirs/no_lockfile_test.dart
+++ b/sdk/lib/_internal/pub/test/list_package_dirs/no_lockfile_test.dart
@@ -16,7 +16,7 @@ main() {
 
     schedulePub(args: ["list-package-dirs", "--format=json"],
         error: '''
-        "Package \\"myapp\\" has no lockfile. Please run \\"pub install\\" first."
+        "Package \\"myapp\\" has no lockfile. Please run \\"pub get\\" first."
         ''',
         exitCode: exit_codes.NO_INPUT);
   });