[EmbedFrameworksScript] Double quote framework name

lib/cocoapods/generator/embed_frameworks_script.rb

@@ -123,7 +123,7 @@ module Pod
           unless frameworks.empty?
             script << %(if [[ "$CONFIGURATION" == "#{config}" ]]; then\n)
             frameworks.each do |framework|
-              script << "  install_framework '#{framework}'\n"
+              script << %(  install_framework "#{framework}"\n)
             end
             script << "fi\n"
           end

spec/unit/generator/embed_frameworks_script_spec.rb

@@ -8,17 +8,17 @@ module Pod
         'Release' => %w(CrashlyticsFramework.framework),
       }
       generator = Pod::Generator::EmbedFrameworksScript.new(frameworks)
-      generator.send(:script).should.include <<-eos.strip_heredoc
+      generator.send(:script).should.include <<-SH.strip_heredoc
         if [[ "$CONFIGURATION" == "Debug" ]]; then
-          install_framework 'Pods/Loopback.framework'
-          install_framework 'Reveal.framework'
+          install_framework "Pods/Loopback.framework"
+          install_framework "Reveal.framework"
         fi
-      eos
-      generator.send(:script).should.include <<-eos.strip_heredoc
+      SH
+      generator.send(:script).should.include <<-SH.strip_heredoc
         if [[ "$CONFIGURATION" == "Release" ]]; then
-          install_framework 'CrashlyticsFramework.framework'
+          install_framework "CrashlyticsFramework.framework"
         fi
-      eos
+      SH
     end
   end
 end