Update git_time decl

jdavid · jdavid · commit 1d11fa171b56 · 2018-05-20T17:52:34.000+02:00
Should fix #795
diff --git a/pygit2/decl.h b/pygit2/decl.h
@@ -77,6 +77,7 @@ typedef struct {
 typedef struct git_time {
 	git_time_t time;
 	int offset;
+	char sign;
 } git_time;
 
 typedef struct git_signature {
