Installation error on Mac Mojave 10.14 - first try of edgedb

```
Mac:edgedb leon$ edgedb server init tutorial
┌──────────────────────┬──────────────────────────────────────────────────────────────┐
│ Instance Name │ tutorial │
│ Mode │ User Service │
│ Data Directory │ /Users/leon/Library/Application Support/edgedb/data/tutorial │
│ Credentials Path │ /Users/leon/.edgedb/credentials/tutorial.json │
│ Database Server Port │ 10700 │
│ Default User │ edgedb │
│ Default Database │ edgedb │
│ EdgeDB Version │ 1.0a3 │
└──────────────────────┴──────────────────────────────────────────────────────────────┘
[2021-03-11T13:08:14Z ERROR edgedb::server::init] Bootstrap error, cleaning up...
edgedb error: cannot bootstrap /Users/leon/Library/Application Support/edgedb/data/tutorial: Failed running "/Library/Frameworks/EdgeDB.framework/Versions/1-alpha3/lib/edgedb-server-1-alpha3/bin/edgedb-server" "--bootstrap-only" "--log-level=warn" "--data-dir" "/Users/leon/Library/Application Support/edgedb/data/tutorial": No such file or directory (os error 2)

```
Steps to Reproduce:

1. follow tutorial on https://www.edgedb.com/docs/tutorial/install
2. curl https://sh.edgedb.com --proto '=https' -sSf1 | sh
3. edgedb server init tutorial (see results above)
4. cd /Users/leon/Library/Application\ Support/edgedb/data (this works with the backslash in the path)
5. cd /Users/leon/Library/"Application Support"/edgedb/data (this works)
6. cd /Users/leon/Library/Application Support/edgedb/data (doesn't work)