Sync with 2.21.4
* maint-2.21:
Git 2.21.4
Git 2.20.5
Git 2.19.6
Git 2.18.5
Git 2.17.6
unpack_trees(): start with a fresh lstat cache
run-command: invalidate lstat cache after a command finished
checkout: fix bug that makes checkout follow symlinks in leading path
diff --git a/cache.h b/cache.h
index 3e7cd0b..0595154 100644
--- a/cache.h
+++ b/cache.h
@@ -1654,6 +1654,7 @@ int has_symlink_leading_path(const char *name, int len);
int threaded_has_symlink_leading_path(struct cache_def *, const char *, int);
int check_leading_path(const char *name, int len);
int has_dirs_only_path(const char *name, int len, int prefix_len);
+void invalidate_lstat_cache(void);
void schedule_dir_for_removal(const char *name, int len);
void remove_scheduled_dirs(void);
