Character set restriction in commit messages?

[Jan Beulich]

Hello,

when trying to push "fix Dwarf2 build with certain gcc versions" in
its originally submitted form just now I got

remote: *** Invalid revision history for commit 6db4c75118b6524520d2f163d79d632aae04d562:
remote: *** It contains characters not in the ISO-8859-15 charset.
remote: ***
remote: *** Below is the first line where this was detected (line 5):
remote: *** | .../bfd/dwarf2.c: In function ‘read_ranges’:
remote: ***                                 ^
remote: ***                                 |
remote: ***
remote: *** Please amend the commit's revision history to remove it
remote: *** and try again.
remote: error: hook declined to update refs/heads/master

I'm unaware of any settings in my local config files that would set
the ISO-8859-15 charset, and I'd expect the server to also use UTF-8,
like about everyone does nowadays? Am I missing some setting, or does
the server need some adjustment?

For immediate purposes I'll use ordinary singe quotes in the affected
change's description.

Jan