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2012-06-03version: add git_user_agent functionJeff King
This is basically a fancy way of saying "git/$GIT_VERSION", except that it is overridable at build-time and through the environment. Which means that people who don't want to advertise their git version (for privacy or security reasons) can tweak it. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-03move git_version_string into version.cJeff King
The global git_version_string currently lives in git.c, but doesn't have anything to do with the git wrapper. Let's move it into its own file, where it will be more appropriate to build more version-related functions. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>