Fix formating in CompactHardTruth.cxx
In this MR only the formatting is changed.
The reason to do is that the current formatting for some reason imposes a limit of 80 characters per line.
This limit breaks even simple type A=B
into multiple lines, e.g.
HepMC::GenVertex::particles_out_const_iterator it =
v->particles_out_const_begin();
or break relatively ssimple macros
ATH_MSG_WARNING("Error removing vertex " <<v->barcode()
<<" for event " <<nEvent);
which makes the code completely unreadable.
The formatting was done with clang-format using LLVM style and 200 characters per line. The clang-format has also inserted whitespaces where needed.