Fix milestone API specs in Ruby 2.1fix-ruby21-milestone-api-specs

Ruby 2.3:
```
URI.parse('http://foo/bar?baz quux')
=> #<URI::HTTP http://foo/bar?baz%20quux>
```

Ruby 2.1:
```
URI.parse('http://foo/bar?baz quux')
URI::InvalidURIError: bad URI(is not URI?): http://foo/bar?baz quux
```

1 files changed, 1 insertions, 1 deletions

diff --git a/spec/support/api_helpers.rb b/spec/support/api_helpers.rb
index 68b196d9033..e25cb9ecd89 100644
--- a/spec/support/api_helpers.rb
+++ b/spec/support/api_helpers.rb
@@ -18,7 +18,7 @@ module ApiHelpers
   #
   # Returns the relative path to the requested API resource
   def api(path, user = nil)
-    "/api/#{API::API.version}#{path}" +
+    "/api/#{API::API.version}#{URI.escape(path)}" +
 
       # Normalize query string
       (path.index('?') ? '' : '?') +