Get verify_sdp.sh to find bogus bins in /p4/common/bin.
For SDP 2020.1+, the "simply named" files 'p4', 'p4d',
'p4broker', and 'p4p' in /p4/common/bin must shell scripts,
not binaries. If an SDP upgrade was done improperly,
these may be incorrect. This can be easily checked
for and reported.