all: add String for fs.{FileInfo,DirEntry} implementations

The new String methods use the new FormatFileInfo and
FormatDirEntry functions.

Fixes #54451

Change-Id: I414cdfc212ec3c316fb2734756d2117842a23631
Reviewed-on: https://go-review.googlesource.com/c/go/+/491175
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/src/embed/embed.go b/src/embed/embed.go
index 66934a8974..8d155ebd55 100644
--- a/src/embed/embed.go
+++ b/src/embed/embed.go
@@ -243,6 +243,10 @@ func (f *file) Mode() fs.FileMode {
 	return 0444
 }
 
+func (f *file) String() string {
+	return fs.FormatFileInfo(f)
+}
+
 // dotFile is a file for the root directory,
 // which is omitted from the files list in a FS.
 var dotFile = &file{name: "./"}