Nincs semmi különbség.

Ezt a diff utility mondta, bizonyára alapos vizsgálat után.

$ /usr/bin/diff -u httpd.conf.20230421 httpd.conf
diff: 0653-827 Missing newline at the end of file httpd.conf.20230421.
diff: 0653-827 Missing newline at the end of file httpd.conf.
There are no differences between the files.

$ /usr/local/bin/diff -u httpd.conf.20230421 httpd.conf
--- httpd.conf.20230421 2023-04-21 10:22:22 +0200
+++ httpd.conf  2023-07-11 10:38:50 +0200
@@ -334,6 +334,9 @@

( NevemTeve | 2023. 07. 11., k – 11:03 )

No, ez gyors volt, csak le kellett fordítani a hibaüzenetet magyarra: én nem beszélni UTF8!
Megoldás:

$ LC_ALL=C /usr/bin/diff -u httpd.conf.20230421 httpd.conf
--- httpd.conf.20230421 2023-04-21 10:22:22.000000000 +0200
+++ httpd.conf  2023-07-11 10:38:50.000000000 +0200
@@ -334,6 +334,9 @@