With no arguments, this will:

   ·   remove trailing whitespace from all lines

   ·   collapse multiple consecutive empty lines into one empty line

   ·   remove empty lines from the beginning and end of the input

   ·   add a missing \n to the last line if necessary.

   In the case where the input consists entirely of whitespace characters, no output will be produced.

   NOTE: This is intended for cleaning metadata, prefer the --whitespace=fix mode of git-apply(1) for correcting whitespace of patches or files in the repository.

   -c, --comment-lines
       Prepend comment character and blank to each line. Lines will automatically be terminated with a newline. On empty lines, only the comment character will be prepended.

       |A brief introduction   $
       |   $
       |$
       |A new paragraph$
       |# with a commented-out line    $
       |explaining lots of stuff.$
       |$
       |# An old paragraph, also commented-out. $
       |      $
       |The end.$
       |  $

   Use git stripspace with no arguments to obtain:

       |A brief introduction$
       |$
       |A new paragraph$
       |# with a commented-out line$
       |explaining lots of stuff.$
       |$
       |# An old paragraph, also commented-out.$
       |$
       |The end.$

   Use git stripspace --strip-comments to obtain:

       |A brief introduction$
       |$
       |A new paragraph$
       |explaining lots of stuff.$
       |$
       |The end.$