Rewrite the short description of the handle() method

* handle() is duplicated since the description explains that method.

* It is pointless to put the "object" into the sentence.

* It is consistent to start the sentence with the "if".

Here goes a typical example that is worth following with consistency:

"If successful, returns true; otherwise returns false."

Change-Id: I1c7648237c75381b8452b8c47a59445fff58ad34
Reviewed-by: Sergey Belyashov <Sergey.Belyashov@gmail.com>
Reviewed-by: Denis Shienkov <denis.shienkov@gmail.com>