[rubygems/rubygems] Show the exact name of the gem that was deleted

If a non exact name (matched as a regexp) is passed to `bundle info`,
these strings might not match.

https://github.com/rubygems/rubygems/commit/831edf1edf

lib/bundler/cli/info.rb

@@ -40,12 +40,13 @@ module Bundler
     end
 
     def print_gem_path(spec)
-      if spec.name == "bundler"
+      name = spec.name
+      if name == "bundler"
         path = File.expand_path("../../../..", __FILE__)
       else
         path = spec.full_gem_path
         unless File.directory?(path)
-          return Bundler.ui.warn "The gem #{gem_name} has been deleted. It was installed at: #{path}"
+          return Bundler.ui.warn "The gem #{name} has been deleted. It was installed at: #{path}"
         end
       end
 

spec/bundler/commands/info_spec.rb

@@ -62,6 +62,10 @@ RSpec.describe "bundle info" do
 
       expect(err).to match(/The gem rails has been deleted/i)
       expect(err).to match(default_bundle_path("gems", "rails-2.3.2").to_s)
+
+      bundle "info rail --path"
+      expect(err).to match(/The gem rails has been deleted/i)
+      expect(err).to match(default_bundle_path("gems", "rails-2.3.2").to_s)
     end
 
     context "given a default gem shippped in ruby", :ruby_repo do