Merge pull request #4345 from jlund/fetch-typo

Fixed a typo in the fetch module documentation

library/files/fetch

@@ -47,7 +47,7 @@ options:
       Allows you to override the default behavior of prepending hostname/path/to/file to
       the destination.  If dest ends with '/', it will use the basename of the source
       file, similar to the copy module.  Obviously this is only handy if the filenames
-      are unqiue.
+      are unique.
 requirements: []
 author: Michael DeHaan
 '''