Formatter: Don't put a space after parameter-naming block comments.

Before: f(a, b, /*doFoo=*/ false);
Now: f(a, b, /*doFoo=*/false);

This style is a lot more common:
$ ack -H '=\*\/\w' lib | wc -l 
    1281
$ ack -H '=\*\/ \w' lib | wc -l 
      70



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@184894 91177308-0d34-0410-b5e6-96231b3b80d8