errors: Introduce EINVALIDSPEC error code
diff --git a/include/git2/errors.h b/include/git2/errors.h
index 9dd42f0..63b6bc8 100644
--- a/include/git2/errors.h
+++ b/include/git2/errors.h
@@ -30,6 +30,7 @@ enum {
GIT_EORPHANEDHEAD = -9,
GIT_EUNMERGED = -10,
GIT_ENONFASTFORWARD = -11,
+ GIT_EINVALIDSPEC = -12,
GIT_PASSTHROUGH = -30,
GIT_ITEROVER = -31,