Patch #10628 and #10514 into v0.8.0 preview (#10646)

Co-authored-by: Jacob MacDonald <jakemac@google.com>
Co-authored-by: Adam Weidman <65992621+adamfweidman@users.noreply.github.com>

Author: 3 people

docs/extension.md

@@ -14,7 +14,7 @@ Note that all of these commands will only be reflected in active CLI sessions on
 
 ### Installing an extension
 
-You can install an extension using `gemini extensions install` with either a GitHub URL source or `--path=some/local/path`.
+You can install an extension using `gemini extensions install` with either a GitHub URL or a local path`.
 
 Note that we create a copy of the installed extension, so you will need to run `gemini extensions update` to pull in changes from both locally-defined extensions and those on GitHub.
 

integration-tests/extensions-install.test.ts

@@ -31,7 +31,7 @@ test('installs a local extension, verifies a command, and updates it', async ()
   }
 
   const result = await rig.runCommand(
-    ['extensions', 'install', `--path=${rig.testDir!}`],
+    ['extensions', 'install', `${rig.testDir!}`],
     { stdin: 'y\n' },
   );
   expect(result).toContain('test-extension');