[rancid] StrictHostKeyChecking=no

[hashmish]

  been without success googling now a while for things as:
+rancid +StrictHostKeyChecking

would like to make a global change to ssh across all device-types as:
-o StrictHostKeyChecking=no

any pointer if that's possible?
or would i have to manually replace all ssh occurrences for all xlogin versions? (which i did for now...)
or would there be a recompile/reinstall option to take care of this?

tia
-h