typo corrected in 1860 LG

An Archive-user spotted a typo in our transcription of the 1860 edition of Leaves of Grass. I've revised the line "It avails not, neither time or place—instance avails not" (from "Crossing Brooklyn Ferry") to read, correctly, "It avails not, neither time or place—distance avails not," as indicated by the page image.

~Liz