BOOST_GRAPH_MPI_INCLUDE formatting

[cojuer]

When trying to build parallel graph examples using boost 1.76 I get errors like this:

In file included from /usr/local/include/boost/graph/breadth_first_search.hpp:26,
                 from src.cpp:19:
/usr/local/include/boost/graph/two_bit_color_map.hpp:106:34: fatal error:  boost / graph / distributed / two_bit_color_map.hpp: No such file or directory
  106 | #include BOOST_GRAPH_MPI_INCLUDE(< boost / graph / distributed / two_bit_color_map.hpp >)
      |

Seems to be caused by new formatting introduced after 1.72 when:
BOOST_GRAPH_MPI_INCLUDE(<boost/graph/distributed/two_bit_color_map.hpp>)
was replaced with
BOOST_GRAPH_MPI_INCLUDE(< boost / graph / distributed / two_bit_color_map.hpp >)