rails/rails — comment on commit d80e4ee20e690dfc0f4ec31c41b873d607462872
File:  line 0
By sobrinho:

Are you sure?

This snippet produces exactly same result on ree-1.8.7-2011.03 and 1.9.3-p0

``` ruby
words = %w(foo bar baz)
puts Regexp.union(words)
# => (?-mix:foo|bar|baz)

regexps = [/foo/, /bar/, /baz/]
puts Regexp.union(regexps)
# => (?-mix:(?-mix:foo)|(?-mix:bar)|(?-mix:baz))
```