Use sxp ~> 1.2 < 1.3.

Author: gkellogg

Gemfile

@@ -11,7 +11,7 @@ group :develop do
   #gem "rdf-xsd",        git: "https://github.com/ruby-rdf/rdf-xsd",         branch: "develop"
 
   #gem "ebnf",           git: "https://github.com/dryruby/ebnf",             branch: "develop"
-  gem "sxp",            git: "https://github.com/dryruby/sxp",              branch: "develop"
+  #gem "sxp",            git: "https://github.com/dryruby/sxp",              branch: "develop"
 
   gem 'rest-client-components'
   gem 'benchmark-ips'

rdf.gemspec

@@ -37,6 +37,7 @@ Gem::Specification.new do |gem|
   gem.add_development_dependency 'rest-client', '~> 2.1'
   gem.add_development_dependency 'rspec',       '~> 3.12'
   gem.add_development_dependency 'rspec-its',   '~> 1.3'
+  gem.add_development_dependency 'sxp',         '~> 1.2', '< 1.3'
   gem.add_development_dependency 'webmock',     '~> 3.18'
   gem.add_development_dependency 'yard',        '~> 0.9'
   gem.add_development_dependency 'faraday',     '~> 1.10'