submodule--helper.c: i18n: add a missing space in message
The message spans over 2 lines but the C concatenation does not add the needed space between the two lines. Signed-off-by: Jean-Noel Avila <jn.avila@free.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Junio C Hamano

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