K 10
svn:author
V 6
emaste
K 8
svn:date
V 27
2022-09-06T19:09:35.676517Z
K 7
svn:log
V 667
newvers.sh: fix git false positive -dirty tag

Assuming that any output from `git diff-index --name-only` implies
changes in the working tree results in false positives: files with
metadata, but not content, changes are also listed.

Check that content differences exist before adding the -dirty tag to
the git hash.

PR:		229230
Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D15968

(cherry picked from commit 50b53a8dc35f38ab6920dd83409541e875d01551)
(cherry picked from commit 5186028dc4a2a74d007fa65857667efb2742eaea)

Git Hash:   b67bd2859d7d757ee9ceb8269a5790f4f1091be5
Git Author: emaste@FreeBSD.org
END