cmd/upspin-audit: fix two missed appearances of the old name

In help messages.

Change-Id: I21e339736a73e3663d774fb37395d159c0b5b8e4
Reviewed-on: https://upspin-review.googlesource.com/17260
Reviewed-by: Andrew Gerrand <adg@golang.org>
diff --git a/cmd/upspin-audit/scandir.go b/cmd/upspin-audit/scandir.go
index 669e126..d1e3dfa 100644
--- a/cmd/upspin-audit/scandir.go
+++ b/cmd/upspin-audit/scandir.go
@@ -37,7 +37,7 @@
 
 func (s *State) scanDirectories(args []string) {
 	const help = `
-Store scandir scans the directory tree for the named user roots.
+Audit scandir scans the directory tree for the named user roots.
 For now it just prints the total storage consumed.`
 
 	fs := flag.NewFlagSet("scandir", flag.ExitOnError)
diff --git a/cmd/upspin-audit/scanstore.go b/cmd/upspin-audit/scanstore.go
index ebde2d6..3d8f53d 100644
--- a/cmd/upspin-audit/scanstore.go
+++ b/cmd/upspin-audit/scanstore.go
@@ -20,7 +20,7 @@
 
 func (s *State) scanStore(args []string) {
 	const help = `
-Store scanstore scans the storage server to identify all references.
+Audit scanstore scans the storage server to identify all references.
 For now it just prints the total storage they represent.`
 
 	fs := flag.NewFlagSet("scanstore", flag.ExitOnError)