Remove the build number from emacs-version variable

It's a largely internal detail that can confuse users.  (Bug#25590)
* lisp/version.el (emacs-build-number): New constant.
(emacs-version): Use emacs-build-number.
* lisp/loadup.el (top-level): When dumping, increment
emacs-build-number rather than emacs-version.
* src/emacs.c (emacs-version): Doc fix.
* doc/lispref/intro.texi (Version Info): Update emacs-version details.
Mention emacs-build-number.
* lisp/gnus/gnus-util.el (gnus-emacs-version):
* lisp/mail/emacsbug.el (report-emacs-bug):
* admin/admin.el (set-version): Update for emacs-version change.
; * etc/NEWS: Mention this.

1 files changed, 1 insertions, 3 deletions

diff --git a/admin/admin.el b/admin/admin.el
index 4892045a690..a6ef19c9aba 100644
--- a/admin/admin.el
+++ b/admin/admin.el
@@ -93,9 +93,7 @@ Optional argument DATE is the release date, default today."
 Root must be the root of an Emacs source tree."
   (interactive (list
                 (read-directory-name "Emacs root directory: " source-directory)
-                (read-string "Version number: "
-                             (replace-regexp-in-string "\\.[0-9]+\\'" ""
-                                                       emacs-version))))
+                (read-string "Version number: " emacs-version)))
   (unless (file-exists-p (expand-file-name "src/emacs.c" root))
     (user-error "%s doesn't seem to be the root of an Emacs source tree" root))
   (message "Setting version numbers...")