Comment # 19 on bug 1084015 from Stefan Hundhammer

False alarm for textdomain samba-server:

#. translators: progress stage
#: src/modules/SambaServer.pm:155
msgid  "Read Samba service role settings"
msgstr "Read samba service role settings"

#. translators: progress stage
#: src/modules/SambaServer.pm:170
msgid  "Reading Samba service role settings..."
msgstr "Reading samba service role settings..."


Wrong translation: "Samba" is a name here. It's not the dance, it's the
software called "Samba", so it needs to be capitalized. It is also capitalized
everywhere else in all user-visible texts, so this change even introduces
inconsistencies.

Also compare with

  https://en.wikipedia.org/wiki/Samba_(software)

as well as a ton of other web articles about it.
It is capitalized. Always.