There were a number of related issues picked up by Coverity where we've used the wrong specifier for printf like functions. WiredTiger doesn't suffer from any ill effects however, it'd be good to fix these to reduce the noise in Coverity.

http://coverity.mongodb.com/query/defects.htm?project=WiredTiger+devel&cid=112215
http://coverity.mongodb.com/query/defects.htm?project=WiredTiger+devel&cid=112223
http://coverity.mongodb.com/query/defects.htm?project=WiredTiger+devel&cid=112229
http://coverity.mongodb.com/query/defects.htm?project=WiredTiger+devel&cid=112232
http://coverity.mongodb.com/query/defects.htm?project=WiredTiger+devel&cid=112255
http://coverity.mongodb.com/query/defects.htm?project=WiredTiger+devel&cid=112304
http://coverity.mongodb.com/query/defects.htm?project=WiredTiger+devel&cid=112305
http://coverity.mongodb.com/query/defects.htm?project=WiredTiger+devel&cid=112320
http://coverity.mongodb.com/query/defects.htm?project=WiredTiger+devel&cid=112340
http://coverity.mongodb.com/query/defects.htm?project=WiredTiger+devel&cid=112375

I've added some comments explaining most of the non-obvious ones which should be visible in the "Triage History".