i18n: git-am printf(1) message to eval_gettext
i18n: git-am printf(1) message to eval_gettext

Convert a message that used printf(1) format to use eval_gettext. It's
easier for translators to handle the latter, since the eval format
automatically gives them context via variable names.

Signed-off-by: Ævar Arnfjörð Bjarmason <0135fcc047f75af264c800977a73e353c6ba842d@gmail.com>
Signed-off-by: Junio C Hamano <a6723cc3f76163bf7adb636a73ac3b0ceb3e6b9b@pobox.com>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git