Gyu-Ho Lee c2dcf7431e etcdserver, store: fix grammars in comments (a->an existing)
I found some grammatical errors in comments.

This pull request was submitted https://github.com/coreos/etcd/pull/3513.
I am resubmitting following the correct guidlines.
2015-09-14 13:41:13 -07:00
..
2015-02-28 11:46:21 -08:00
2015-07-07 16:01:51 +01:00