Phobos coding conventions

If you're planning to submit pull requests for druntime or Phobos, you should follow the following coding conventions:

• Avoid using the tab character.
• Use 4-space indentation.
• For blocks enclosed by curly braces ({}), the opening and closing braces should be on their own lines, at the same indentation level as its containing block:

void main(string[] args)
{
    if (args.length == 0)
    {
        writeln("Please specify filename");
    }
    else
    {
        lotsOfDotDotDotMagic(args);
    }
}

• Identifiers should use camelcase instead of underscores: myVariable instead of my_variable.
• Lines should preferably not be longer than 80 characters, though this is a soft limit.

In general, just like in any collaborative project, try your best to conform to the same coding style as in the rest of the source file you're editing.