Some minor Doxygen fixes.  This was my run through the HTML output produced by my assigned functions.
Some minor Doxygen fixes.  This was my run through the HTML output
produced by my assigned functions.

arm-hpc/papi,arm-hpc/papi,arm-hpc/papi,pyrovski/papi,arm-hpc/papi,arm-hpc/papi,pyrovski/papi,pyrovski/papi,pyrovski/papi,pyrovski/papi,pyrovski/papi,pyrovski/papi,arm-hpc/papi,arm-hpc/papi,pyrovski/papi