emerge.el calls insert-buffer

[Lennart Borgman]

I get several warnings in emerge.el when compiling Emacs saying

   In emerge-prepare-error-list:
   emerge.el:714:5:Warning: `insert-buffer' used from Lisp code
   That command is designed for interactive use only

The doc for `insert-buffer' says that `insert-buffer-substring' should 
be used instead.