bug#23258: 25.1.50; The docstring of with-eval-after-load needs improvement

[Eli Zaretskii]

> From: Harald Hanche-Olsen <hanche@math.ntnu.no>
> Date: Sun, 10 Apr 2016 06:43:09 +0000
> 
> The docstring for with-eval-after-load gives only a cursory description of 
> the FILE argument. The docstring of the wrapped function eval-after-load, 
> however, is much more comprehensive. It should either be included in the 
> docstring of with-eval-after-load, or the docstring for with-eval-after-load 
> should refer the reader to eval-after-load for further details. (The latter 
> option is far better, IMO.)

Fixed.

For such simple bugs, I'd encourage people to submit patches rather
than just tell how to fix the problem.  Thanks in advance.