git-save: improve commit authorship data

We used to always just commit as "subsurface@hohndel.org" because
libgit-19 doesn't have the interfaces to do user name lookup.  This does
better if you have libgit-20, using "git_signature_default()" to get the
actual user that does the saving.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/windows.c b/windows.c
index 5a7707108..fbc8788a0 100644
--- a/windows.c
+++ b/windows.c
@@ -14,6 +14,9 @@
 const char system_divelist_default_font[] = "Sans";
 const int system_divelist_default_font_size = 8;
 
+void subsurface_user(struct user_info *user)
+{ /* Encourage use of at least libgit2-0.20 */ }
+
 const char *system_default_filename(void)
 {
 	char datapath[MAX_PATH];