By pure coincidence, the Wikipedia page on gettext shows that gettext will correctly translate "My name is %s" into "Je m'appelle %s" in French. So changing the po example on p. 122 of debmake-doc.en.pdf from
msgid "Hello, I am %s!\n"
to
msgid "Hello, my name is %s!\n"
should fix that. See this excerpt at https://en.wikipedia.org/wiki/Gettext
#: src/name.c:36
msgid "My name is %s.\n"
msgstr "Je m'appelle %s.\n"
Paul Hardy
