Spec tweaks for running on windows.

Author: gkellogg

spec/model_uri_spec.rb

@@ -620,7 +620,7 @@
       %w(http://foo/bar# /a) => "<http://foo/a>",
       %w(http://foo/bar# #a) => "<http://foo/bar#a>",
 
-      %w(http://a/bb/ccc/.. g:h) => "<g:h>",
+      %w(http://a/bb/ccc/.. gg:h) => "<gg:h>",
       %w(http://a/bb/ccc/.. g) => "<http://a/bb/ccc/g>",
       %w(http://a/bb/ccc/.. ./g) => "<http://a/bb/ccc/g>",
       %w(http://a/bb/ccc/.. g/) => "<http://a/bb/ccc/g/>",

spec/ntriples_spec.rb

@@ -630,7 +630,7 @@
       expect(output.string).to eq "#{stmt_string}\n"
     end
 
-    it "should dump statements to a file" do
+    it "should dump statements to a file", skip: ('not windows' if Gem.win_platform?) do
       require 'tmpdir' # for Dir.tmpdir
       writer.dump(graph, filename = File.join(Dir.tmpdir, "test.nt"))
       expect(File.read(filename)).to eq "#{stmt_string}\n"