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.

2012/dlowe/README.md

@@ -16,7 +16,6 @@ STATUS: INABIAF - please **DO NOT** fix
 For more detailed information see [2012 dlowe in bugs.md](/bugs.md#2012-dlowe).
 
 
-
 ## To use:
 
 ```sh

2012/konno/README.md

@@ -32,7 +32,6 @@ This alternate code is an unobfuscated version of the winning code.
 
 ### Alternate build:
 
-
 ```sh
 make alt
 ```

2012/tromp/README.md

@@ -18,7 +18,6 @@ STATUS: INABIAF - please **DO NOT** fix
 For more detailed information see [2012 tromp in bugs.md](/bugs.md#2012-tromp).
 
 
-
 ## To use:
 
 ```sh

2012/zeitak/README.md

@@ -41,6 +41,7 @@ this extremely subtle entry.
 make alt
 ```
 
+
 ### Alternate use:
 
 Use `zeitak.alt` as you would `zeitak` above.
@@ -59,7 +60,6 @@ just to understand 18 key characters of this code.
 
 ## Author's remarks:
 
-
 ### Nesting Errors Detector