l10n: Update git.pot (3 new, 2 removed messages)

Generate po/git.pot from v1.7.10.2-35-g0b9f4:

 * 3 new l10n messages at lines: 2743, 2751, 2759.

 * 2 removed l10n messages from lines: 1879, 2757.

Signed-off-by: Jiang Xin <worldhello.net@gmail.com>

Author: jiangxin