(PDOC-23) Polish JSON output command line behavior

Fix path where json is saved.
Suppress statistics when emitting json to stdout.

lib/puppet_x/puppetlabs/strings/util.rb

@@ -21,6 +21,11 @@ module PuppetX::PuppetLabs::Strings::Util
     # and ruby files to parse.
     yard_args = (args.empty? ? MODULE_SOURCEFILES : args)
 
+    # If json is going to be emitted to stdout, suppress statistics.
+    if options[:emit_json_stdout]
+      yard_args.push('--no-stats')
+    end
+
     # This line monkeypatches yard's progress indicator so it doesn't write
     # all over the terminal. This should definitely not be in real code, but
     # it's very handy for debugging with pry

lib/puppet_x/puppetlabs/strings/yard/json_registry_store.rb

@@ -71,7 +71,7 @@ module YARD
       def serialize(data)
 
         if YARD::Config.options[:emit_json]
-          path = File.join(basepath, YARD::Config.options[:emit_json])
+          path = YARD::Config.options[:emit_json]
           log.debug "Serializing json to #{path}"
           File.open!(path, "wb") {|f| f.write data }
         end