Fix tmp/format-headers.sh, format headers

The script had "s surrounding the git ls-files command which turned it
to a single file which of course is wrong.

Ran script again fixing many README.md files that had incorrect number
of blank lines for critical headers.

This will have to be done a final but a good number of files have been
corrected.

2001/rosten/README.md

@@ -16,7 +16,6 @@ STATUS: missing files - please provide them
 For more detailed information see [2001 rosten in bugs.md](/bugs.md#2001-rosten).
 
 
-
 ## To use:
 
 ```sh
@@ -51,7 +50,6 @@ cursor) in the wrong way.  :-)
 
 ## Author's remarks:
 
-
 ### NAME
 
 `rosten` - make the mouse act as if it has been greased