Doesn't resolve nrepl port from nested folder, by default

[nbardiuk]

Steps to reproduce:

1. Start repl from root of a project: lein repl
2. Navigate to nested folder: cd src
3. Try to evaluate an expression: rep '(+ 1 1)'

Actual output:

.nrepl-port: No such file or directory

Expected output:

2

Observation:
Providing default input for port argument fixes it:

> rep -p @.nrepl-port@. '(+ 1 1)'
2

[eraserhd]

Weird, thinko... thanks!