Percona pt-table-checksum output is in infinite loop "Waiting for the --replicate table to replicate"
On Master DB Server

(i) For safe side, I made copy of original /bin/pt-table-checksum

cp /bin/pt-table-checksum /bin/pt-table-checksumorg

(ii) Open the /bin/pt-table-checksum file

vi /bin/pt-table-checksum

(iii) Go to line number 8590
 Press esc, type 8590 , press shift g

(iv) replace the line
   my @lagged_slaves = map { {cxn=>$_, lag=>undef} } @$slaves;
by
    my @lagged_slaves = (); 

the program immediately works and returns the expected results.