dup-source.log ( failed)

FAIL: tests/mv/dup-source
=========================

--- exp	2024-11-21 09:58:29.901703727 +0000
+++ out	2024-11-21 09:58:29.899703723 +0000
@@ -1,5 +1,5 @@
 mv: cannot stat 'a': No such file or directory
 mv: cannot stat 'a': No such file or directory
 mv: cannot stat 'b': No such file or directory
-mv: cannot move './b' to a subdirectory of itself, 'b/b'
-mv: warning: source directory 'b' specified more than once
+mv: cannot move './b' to a subdirectory of itself, 'b//b'
+mv: cannot move 'b' to a subdirectory of itself, 'b//b'
FAIL tests/mv/dup-source.sh (exit status: 1)