Improve detection of pdumper file and *.eln files

* src/emacs.c (load_pdump_find_executable): Resolve symlinks even
if argv[0] includes leading directories.  (Bug#46790)
10 jobs for feature/native-comp in 196 minutes and 12 seconds (queued for 2 seconds)
latest
Status Job ID Name Coverage
  Prep Images
passed #21334
prep-image-base

00:04:33

 
  Build Images
passed #21335
build-image-inotify

00:38:10

 
  Platform Images
passed #21336
build-image-filenotify-gio

01:42:27

passed #21337
build-image-gnustep

02:15:39

 
  Platforms
failed #21338
test-filenotify-gio

00:17:48

passed #21339
test-gnustep

00:01:22

 
  Slow
skipped #21343
test-all-inotify
skipped #21340
test-native-bootstrap-speed0
skipped #21341
test-native-bootstrap-speed1
skipped #21342
test-native-bootstrap-speed2
 
Name Stage Failure
failed
test-filenotify-gio Platforms
  SKIPPED  file-notify-test10-sufficient-resources
SKIPPED file-notify-test10-sufficient-resources-remote

make: Leaving directory '/checkout/test'
Running after script...
$ test -n "$(docker ps -aq -f name=${test_name})" && docker cp ${test_name}:checkout/test ${test_name}
$ test -n "$(docker ps -aq -f name=${test_name})" && docker rm ${test_name}
test-filenotify-gio-fa65c044
ERROR: Job failed: exit code 2