fix command separator from ; to && for windows; prettier for ubuntu

Author: tophtucker

test/deploy-test.ts

@@ -258,7 +258,7 @@ describe("deploy", () => {
       );
 
       const {stdout, stderr} = await promisify(exec)(
-        "touch readme.md; git add .; git commit -m 'initial'; git remote add origin [email protected]:observablehq/test.git"
+        "touch readme.md && git add . && git commit -m 'initial' && git remote add origin [email protected]:observablehq/test.git"
       );
       console.log("starts cloud build test", {stdout, stderr});
 

test/mocks/directory.ts

@@ -14,7 +14,7 @@ export function mockIsolatedDirectory({git}: {git: boolean}) {
     if (git) {
       console.log("logging stdout, stderr");
       const a = await promisify(exec)(
-        "git config --global user.email \"you@example.com\"; git config --global user.name \"Your Name\"; git config --global init.defaultBranch main"
+        'git config --global user.email "observable@example.com" && git config --global user.name "Observable User" && git config --global init.defaultBranch main'
       );
       console.log(a.stdout, a.stderr);
       const b = await promisify(exec)("git init");