old_contents: #!/usr/bin/env python
  # Copyright (c) Facebook, Inc. and its affiliates.
  from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from __future__ import unicode_literals
  
  import specs.folly as folly
  import specs.fizz as fizz
  import specs.fmt as fmt
  import specs.rsocket as rsocket
  import specs.sodium as sodium
  import specs.wangle as wangle
  import specs.zstd as zstd
  
  from shell_quoting import ShellQuoted
  
  
  def fbcode_builder_spec(builder):
      # This API should change rarely, so build the latest tag instead of master.
      builder.add_option(
          'no1msd/mstch:git_hash',
          ShellQuoted('$(git describe --abbrev=0 --tags)')
      )
      return {
          'depends_on': [folly, fizz, fmt, sodium, rsocket, wangle, zstd],
          'steps': [
              # This isn't a separete spec, since only fbthrift uses mstch.
              builder.github_project_workdir('no1msd/mstch', 'build'),
              builder.cmake_install('no1msd/mstch'),
              builder.fb_github_cmake_install('fbthrift/thrift'),
          ],
      }
  
new_contents: #!/usr/bin/env python
  # Copyright (c) Facebook, Inc. and its affiliates.
  from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from __future__ import unicode_literals
  
  import specs.folly as folly
  import specs.fizz as fizz
  import specs.fmt as fmt
  import specs.rsocket as rsocket
  import specs.sodium as sodium
  import specs.wangle as wangle
  import specs.zstd as zstd
  
  
  def fbcode_builder_spec(builder):
      return {
          'depends_on': [folly, fizz, fmt, sodium, rsocket, wangle, zstd],
          'steps': [
              builder.fb_github_cmake_install('fbthrift/thrift'),
          ],
      }
  
subject: remove mstch from fbthrift's fbcode_builder spec