fix: use time syntax that jurassic systemd on RHEL 7 actually supports

templates/usr/local/lib/systemd/system/rosetta_maintenance_begin.timer.j2

@@ -4,8 +4,14 @@ Description=timer for rosetta_maintenance.service
 [Timer]
 # run on the 1st Tuesday of each month
 # You can validate your calendar expressions using `systemd-analyze calendar EXPR`.
-OnCalendar=Tue *-*-01..07 08:00:00
-Unit=rosetta_maintenance_begin
+# Of course, the expression we use on our Debian systems won't work on the
+# jurassic RHEL versions of systemd 219, because the ".." syntax for timespans
+# in calendar events isn't supported yet. Instead, we have to use the older
+# syntax that explicitely lists all days separated by commas.
+# One more reason for RHEL to fuck ALL THE WAY OFF!
+# OnCalendar=Tue *-*-01..07 08:00:00    # NOT THIS on RHEL 7!
+OnCalendar=Tue *-*-01,02,03,04,05,06,07 08:00:00
+Unit=rosetta_maintenance_begin.service
 
 [Install]
 WantedBy=default.target

templates/usr/local/lib/systemd/system/rosetta_maintenance_end.timer.j2

@@ -4,7 +4,13 @@ Description=timer for rosetta_maintenance.service
 [Timer]
 # run on the 1st Tuesday of each month
 # You can validate your calendar expressions using `systemd-analyze calendar EXPR`.
-OnCalendar=Tue *-*-01..07 11:00:00
+# Of course, the expression we use on our Debian systems won't work on the
+# jurassic RHEL versions of systemd 219, because the ".." syntax for timespans
+# in calendar events isn't supported yet. Instead, we have to use the older
+# syntax that explicitely lists all days separated by commas.
+# One more reason for RHEL to fuck ALL THE WAY OFF!
+# OnCalendar=Tue *-*-01..07 08:00:00    # NOT THIS on RHEL 7!
+OnCalendar=Tue *-*-01,02,03,04,05,06,07 11:00:00
 Unit=exlibris.service
 
 [Install]