creationix/nvm — pull request #237 by joliss (2013-05-13 22:14:40+00:00)
Title: Invoke basename with -a, so that it accepts multiple parameters

`nvm ls` doesn't work on my system, because it passes multiple arguments to `basename`. This commit fixes it.

Before:

```
$ nvm ls
N/A
current:	v0.10.5
default -> 0.10 (-> v0.10.5)
```

After:

```
$ nvm ls
v0.6.21	v0.8.23	v0.10.5
current:	v0.10.5
default -> 0.10 (-> v0.10.5)
```

I'm using Ubuntu 13.04 with basename (GNU coreutils) 8.20 and GNU bash 4.2.45(1)-release. The `-a` option added in this commit works on Mac OS X version 10.8.3 as well, so it should be good.