Update remaining gemspec license values to standard format

Author: estolfo

elasticsearch-extensions/elasticsearch-extensions.gemspec

@@ -28,7 +28,7 @@ Gem::Specification.new do |s|
   s.description   = %q{Extensions for the Elasticsearch Rubygem}
   s.summary       = %q{Extensions for the Elasticsearch Rubygem}
   s.homepage      = "https://github.com/elasticsearch/elasticsearch-ruby/tree/master/elasticsearch-extensions"
-  s.license       = "Apache 2"
+  s.license       = "Apache-2.0"
 
   s.files         = `git ls-files`.split($/)
   s.executables   = s.files.grep(%r{^bin/}) { |f| File.basename(f) }

elasticsearch-xpack/elasticsearch-xpack.gemspec

@@ -29,7 +29,7 @@ Gem::Specification.new do |spec|
   spec.summary       = "Ruby integrations for the X-Pack extensions for Elasticsearch"
   spec.description   = "Ruby integrations for the X-Pack extensions for Elasticsearch"
   spec.homepage      = "https://github.com/elastic/elasticsearch-xpack-ruby"
-  spec.license       = "Apache 2"
+  spec.license       = "Apache-2.0"
 
   spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
   spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }