Re-indent C code

[JanWielemaker]

Current style is from Anjo Anjewierden, the guru who teached me to program in C. I don't think it is a bad style, but it is not supported by modern tools. Considering that quite some attention has been paid to have a consistent layout where values are often nicely displayed as tables, a general reformat is (I think) undesirable.

What about this?

• Keep indentiation increment of 2 (otherwise all will break)
• Re-format to

   if ( .... ) {
     body
   } else {
    ...
   }
  

[JanWielemaker]

After discussion with notably Keri Harris, it was decided not to change the indentation. We do not expect much gain while the effort is considerable.