old_contents: """This file defines the version of neurodocker.
  
  Copied from https://github.com/nipy/nipype/blob/master/nipype/info.py.
  """
  
  __version__ = '0.4.0rc0'
  
  
  def get_gitversion():
      """Neurodocker version as reported by `git describe`.
  
      Returns
      -------
      None or str
          Version of neurodocker according to git.
      """
      import os
      import subprocess
  
      here = os.path.abspath(os.path.dirname(__file__))
      try:
          cmd = "git describe"
          return subprocess.check_output(cmd.split(), cwd=here).decode().strip()
      except subprocess.CalledProcessError:
          return None
  
  
  # Only append git hash if this is not a release.
  if 'dev' in __version__:
      gitversion = get_gitversion()  # v0.3.2-183-gea5425b
      if gitversion is not None:
          __version__ = gitversion
          if gitversion.startswith('v'):
              __version__ = __version__[1:]
  
new_contents: """This file defines the version of neurodocker.
  
  Copied from https://github.com/nipy/nipype/blob/master/nipype/info.py.
  """
  
  __version__ = '0.4.0.dev1'
  
  
  def get_gitversion():
      """Neurodocker version as reported by `git describe`.
  
      Returns
      -------
      None or str
          Version of neurodocker according to git.
      """
      import os
      import subprocess
  
      here = os.path.abspath(os.path.dirname(__file__))
      try:
          cmd = "git describe"
          return subprocess.check_output(cmd.split(), cwd=here).decode().strip()
      except subprocess.CalledProcessError:
          return None
  
  
  # Only append git hash if this is not a release.
  if 'dev' in __version__:
      gitversion = get_gitversion()  # v0.3.2-183-gea5425b
      if gitversion is not None:
          __version__ = gitversion
          if gitversion.startswith('v'):
              __version__ = __version__[1:]
  
subject: increase version to dev1