* lisp/version.el (emacs-repository-version-git): Demote errors.

Check result is a hash.

1 files changed, 4 insertions, 3 deletions

diff --git a/lisp/version.el b/lisp/version.el
index 112611d1083..c0b975ed31b 100644
--- a/lisp/version.el
+++ b/lisp/version.el
@@ -106,10 +106,11 @@ or if we could not determine the revision.")
   (with-temp-buffer
     (let ((default-directory (file-name-as-directory dir)))
       (and (eq 0
-               (ignore-errors
+               (with-demoted-errors "Error running git rev-parse: %S"
                  (call-process "git" nil '(t nil) nil "rev-parse" "HEAD")))
-           (not (zerop (buffer-size)))
-           (replace-regexp-in-string "\n" "" (buffer-string))))))
+           (progn (goto-char (point-min))
+                  (looking-at "[0-9a-fA-F]\\{40\\}"))
+           (match-string 0)))))
 
 (defun emacs-repository--version-git-1 (file)
   "Internal subroutine of `emacs-repository-get-version'."