[build] create all:lint rake task to execute both format script and python tox

Author: titusfortner

Rakefile

@@ -1074,6 +1074,12 @@ namespace :all do
     @git.push if %w[y yes].include?(response)
   end
 
+  task :lint do
+    ext = /mswin|msys|mingw|cygwin|bccwin|wince|emc/.match?(RbConfig::CONFIG['host_os']) ? 'ps1' : 'sh'
+    sh "./scripts/format.#{ext}", verbose: true
+    Rake::Task['py:lint'].invoke
+  end
+
   desc 'Update everything in preparation for a release'
   task :prepare, [:version, :channel] do |_task, arguments|
     chrome_channel = arguments[:channel] || 'Stable'
@@ -1252,7 +1258,7 @@ end
 
 def update_changelog(version, language, path, changelog, header)
   tag = previous_tag(version, language)
-  log = `git --no-pager log #{tag}...HEAD --pretty=format:">>> %B" --reverse #{path}`
+  log = `git --no-pager log #{tag}...HEAD --pretty=format:"--> %B" --reverse #{path}`
   commits = log.split('>>>').map { |entry|
     lines = entry.split("\n")
     lines.reject! { |line| line.match?(/^(----|Co-authored|Signed-off)/) || line.empty? }