Fix 2 javadoc typos introduced by []
Fix 2 javadoc typos introduced by []

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=142488570

EdwardLee03/guava,mosoft521/guava,google/guava,Xaerxess/guava,google/guava,berndhopp/guava,rgoldberg/guava,rgoldberg/guava,typetools/guava,EdwardLee03/guava,xasx/guava,typetools/guava,google/guava,berndhopp/guava,DavesMan/guava,mosoft521/guava,xasx/guava,DavesMan/guava,Xaerxess/guava,mosoft521/guava