tests: add a substitution for ENOTDIR/ERROR_PATH_NOT_FOUND messages

tests/common-pattern.py

@@ -47,6 +47,13 b' substitutions = ['
         # FormatMessage(ERROR_FILE_NOT_FOUND)
         br'The system cannot find the file specified',
     ),
+    br'$ENOTDIR$': (
+        # strerror()
+        br'Not a directory',
+
+        # FormatMessage(ERROR_PATH_NOT_FOUND)
+        br'The system cannot find the path specified',
+    ),
 }
 
 for replace, msgs in _errors.items():

tests/test-origbackup-conflict.t

@@ -129,8 +129,7 b' Incorrectly configure origbackuppath to '
   b/c: replacing untracked file
   getting b/c
   creating directory: $TESTTMP/repo/.hg/badorigbackups/b (glob)
-  abort: The system cannot find the path specified: '$TESTTMP/repo/.hg/badorigbackups/b' (glob) (windows !)
-  abort: Not a directory: '$TESTTMP/repo/.hg/badorigbackups/b' (no-windows !)
+  abort: $ENOTDIR$: '$TESTTMP/repo/.hg/badorigbackups/b' (glob)
   [255]
   $ cat .hg/badorigbackups
   data