Embryonic docstrings for MISMATCH, REPLACE, CONCATENATE, and MERGE.
Embryonic docstrings for MISMATCH, REPLACE, CONCATENATE, and MERGE.

clasp-developers/SICL,clasp-developers/SICL,vtomole/SICL,vtomole/SICL,clasp-developers/SICL,vtomole/SICL,clasp-developers/SICL,vtomole/SICL