Merge branch 'js/blame-lib'

A hotfix to a topic already in 'master'.

* js/blame-lib:
  blame: fix memory corruption scrambling revision name in error message

Author: gitster

blame.c

@@ -1663,7 +1663,7 @@ static struct commit *find_single_final(struct rev_info *revs,
 		name = revs->pending.objects[i].name;
 	}
 	if (name_p)
-		*name_p = name;
+		*name_p = xstrdup_or_null(name);
 	return found;
 }
 
@@ -1735,7 +1735,7 @@ static struct commit *find_single_initial(struct rev_info *revs,
 		die("No commit to dig up from?");
 
 	if (name_p)
-		*name_p = name;
+		*name_p = xstrdup(name);
 	return found;
 }
 
@@ -1843,6 +1843,8 @@ void setup_scoreboard(struct blame_scoreboard *sb, const char *path, struct blam
 
 	if (orig)
 		*orig = o;
+
+	free((char *)final_commit_name);
 }