Pluralize ronin-exploit in Mixins::BuildDir#build_dir (closes #161).

* This matches `Ronin::Payloads::Mixins::BuildDir#build_dir`.

Author: postmodern

lib/ronin/exploits/mixins/build_dir.rb

@@ -41,7 +41,7 @@ module BuildDir
         #
         def perform_build
           exploit_name = self.class.id.tr('/','-')
-          @build_dir   = Dir.mktmpdir("ronin-exploit-#{exploit_name}-")
+          @build_dir   = Dir.mktmpdir("ronin-exploits-#{exploit_name}-")
 
           super
         end

spec/mixins/build_dir.rb

@@ -25,7 +25,7 @@ def build
 
       subject.perform_build
 
-      expect(subject.build_dir).to match(%r{\A/tmp/ronin-exploit-#{exploit_class.id}-\d+-\d+-[a-z0-9]+\z})
+      expect(subject.build_dir).to match(%r{\A/tmp/ronin-exploits-#{exploit_class.id}-\d+-\d+-[a-z0-9]+\z})
       expect(File.directory?(subject.build_dir)).to be(true)
     end
 
@@ -47,7 +47,7 @@ def build
       it "must replace any '/' characters with a '-'" do
         subject.perform_build
 
-        expect(subject.build_dir).to match(%r{\A/tmp/ronin-exploit-test-exploit-\d+-\d+-[a-z0-9]+\z})
+        expect(subject.build_dir).to match(%r{\A/tmp/ronin-exploits-test-exploit-\d+-\d+-[a-z0-9]+\z})
       end
     end
   end