Small fixes

* lisp/generic-x.el (etc-passwd-generic-mode): Add comment.  (Bug#34225)

* lisp/vc/diff-mode.el (diff-syntax-fontify-hunk): Set overlay
property 'diff-mode to 'syntax.  (Bug#33567)
(diff-syntax-fontify-props): Reset buffer-file-name to nil.
3 jobs for master in 60 minutes and 1 second (queued for 2 seconds)
Status Job ID Name Coverage
  Test
failed #674
test-all

01:00:01

failed #673
test-all

01:00:02

failed #672
test-all

01:00:01

 
Name Stage Failure
failed
test-all Test The script exceeded the maximum execution time set for the job
  GEN      lisp/eshell/eshell-tests.log
ELC lisp/faces-tests.elc
GEN lisp/faces-tests.log
ELC lisp/ffap-tests.elc
GEN lisp/ffap-tests.log
ELC lisp/filenotify-tests.elc
GEN lisp/filenotify-tests.log
Pulling docker image gitlab/gitlab-runner-helper:x86_64-f100a208 ...
ERROR: Job failed: execution took longer than 1h0m0s seconds