Per RFC: OMPI_CFLAGS_BEFORE_PICKY  -> OPAL_CFLAGS_BEFORE_PICKY

- This line, and those below, will be ignored--

M    opal/mca/event/libevent2021/configure.m4
M    opal/mca/hwloc/hwloc172/configure.m4
M    configure.ac
M    config/opal_setup_libltdl.m4
M    config/opal_check_visibility.m4
M    config/opal_setup_cc.m4
Per RFC: 
    ompi_show_title  -> opal_show_title
    ompi_show_subtitle -> opal_show_subtitle
Do not call into hcoll progress after MPI_Finalize

Reviewed by Mike
cmr=v1.8.2:reviewer=ompi-rm1.8