anchor.diff:  
   *arduino* [*--install-boards* __package name__:__platform architecture__[:__version__]]
   
  -*arduino* [*--install-library* __library name__[:__version__]]
  +*arduino* [*--install-library* __library name__[:__version__][,__library name__[:__version__],__library name__[:__version__]]
   
   DESCRIPTION
   -----------
  
positive.code: 
       arduino --install-library "Bridge:1.0.0"
  
  HISTORY
  -------
  1.5.2::
  
negative.code: 
  *--install-library* __library name__[:__version__]::
  	Fetches available libraries list and install the specified one. If __version__ is omitted, the latest is installed. If a library with the same version is already installed, nothing is installed and program exits with exit code 1. If a library with a different version is already installed, it's replaced.
  	Multiple libraries can be specified, separated by a comma.
  
  OPTIONS
  -------
  