[Dirvish] Typo in Dirvish status reporting

[Nathan Hunsperger]

I was just going through some old notes I made back when I was working a
bit on Dirvish, and ran across an entry about the following:

dirvish.pl 1.2.1 line 704:
if ($Status eq 'fatal' || $Status eq 'error' || $status eq 'unknown')

I think that should be:
if ($Status eq 'fatal' || $Status eq 'error' || $Status eq 'unknown')

Notice the last "$status" wasn't capitalized.  $status is a hash,
whereas $Status is a string.  This also affects 1.3.1.

I don't currently have a system setup for testing this, so I don't know
what behavior might change as a result of changing this.

- Nathan