pry/pry — pull request #627 by kyrylo (2012-07-01 12:54:48+00:00)
Title: Fix space handling for `edit` command

Fix issue #623 (edit command can't handle paths with spaces in the
name).

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Description by banister:

>> .cd /Users/john/Library/Application Support/
>> edit hello.rb

The editor freaks out, opening two files, one called
`/Users/john/Library/Application` and the other called
`Support/hello.rb`
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Use Shellwords, because it's is a jewel.

Reported-by: John Mair
Signed-off-by: Kyrylo Silin