fix

msa_limit.py

@@ -57,7 +57,7 @@ def usage():
         "            names of the experiments you want to display in the summary.",
         "         -p <string> ",
         "            default: nothing",
-        "            Prefix for results folders."
+        "            Prefix for results folders.",
         "         -d ",
         "            default: false",
         "            Show diploid metrics."