compat: Add simplified merge sort implementation from glibc

diff --git a/builtin-blame.c b/builtin-blame.c
index d98caaf2171a9e91c44f47a8519446546b3b02b8..9b4c02e87f7ef4a20d269ab9315b6977cf7fb3fb 100644 (file)
--- a/builtin-blame.c
+++ b/builtin-blame.c
@@ -606,7 +606,7 @@ static void add_blame_entry(struct scoreboard *sb, struct blame_entry *e)
 
 /*
  * src typically is on-stack; we want to copy the information in it to
- * an malloced blame_entry that is already on the linked list of the
+ * a malloced blame_entry that is already on the linked list of the
  * scoreboard.  The origin of dst loses a refcnt while the origin of src
  * gains one.
  */