What I expected to happen was...:
That the ocelot entity would be spelled correctly in the stat.killentity.ocelot objective.
What actually happened was...:
The objective was spelled stat.killentity.ozelot
Steps to Reproduce:
1. Enter snapshot 13w37b.
2. Type the command /scoreboard objective add [Name] stat.killentity.o
3. After the 'O' use Tab Completion to see that it is spelled Ozelot.