mylib.e instead of mylib.el in help buffers

[Lennart Borgman]

With todays CVS Emacs on w32 I get wrong mylib.e instead of mylib.el in 
help buffers if a library is not compiled. For compiled libraries I get 
mylib.el as expected.

To reproduce the error (mylib.elc should not exist, only mylib.el):

emacs -Q
M-: (add-to-list 'load-path "c:/my-lib-path") RET
M-x load-library RET mylib RET
C-h f some-function-in-mylib RET

The help buffer now shows "mylib.e" instead of "mylib.el".