I use etckeeper from pkgsrc on NetBSD with a nightly cron job, and it generates warnings each night:

dnsdomainname: not found
find: -not: unknown option
find: -not: unknown option
[master e4e5623] Daily autocommit
 5 files changed, 90 deletions(-)
...and so on...

I've traced the issue to not-quite-POSIX args to find in pre-commit.d/20warn-problem-files, made a patch, and Amitai (schmonz) has applied the patch to the pkgsrc version. I thought you might want to include it at the source:

diff --git a/etckeeper/pre-commit.d/20warn-problem-files b/etckeeper/pre-commit.d/20warn-problem-files
index f7c7580..f28d5ac 100755
--- a/etckeeper/pre-commit.d/20warn-problem-files
+++ b/etckeeper/pre-commit.d/20warn-problem-files
@@ -6,14 +6,14 @@ exclude_internal () {
 }

 if [ "$VCS" = bzr ] || [ "$VCS" = darcs ]; then
-       special=$(find . -not -type d -not -type f -not -type l | exclude_internal) || true
-       hardlinks=$(find . -type f -not -links 1 | exclude_internal ) || true
+       special=$(find . ! -type d ! -type f ! -type l | exclude_internal) || true
+       hardlinks=$(find . -type f ! -links 1 | exclude_internal ) || true
 elif [ "$VCS" = hg ]; then
-       special=$(find . -not -type d -not -type f -not -type l | exclude_internal) || true
-       hardlinks=$(find . -type f -not -links 1 -exec hg status {} \; | exclude_internal ) || true
+       special=$(find . ! -type d ! -type f ! -type l | exclude_internal) || true
+       hardlinks=$(find . -type f ! -links 1 -exec hg status {} \; | exclude_internal ) || true
 elif [ "$VCS" = git ]; then
-       special=$(find . -not -type d -not -type f -not -type l -exec git ls-files --exclude-standard --cached --others {} \; | exclude_internal) || true
-       hardlinks=$(find . -type f -not -links 1 -exec git ls-files --exclude-standard --cached --others {} \; | exclude_internal) || true
+       special=$(find . ! -type d ! -type f ! -type l -exec git ls-files --exclude-standard --cached --others {} \; | exclude_internal) || true
+       hardlinks=$(find . -type f ! -links 1 -exec git ls-files --exclude-standard --cached --others {} \; | exclude_internal) || true
 else
        special=""
 fi

Thanks!

This change was already made to etckeeper back in 2014, there is no "-not" in the etckeeper source code anywhere now. I wonder why netbsd is apparently using such an out of date etckeeper. Anyway, done --?Joey