fix test (the error message is different across the systems)

ext/bz2/tests/002.phpt

@@ -83,12 +83,12 @@ bool(false)
 resource(%d) of type (stream)
 resource(%d) of type (stream)
 
-Warning: fopen(bz_open_002.txt): failed to open stream: Bad file descriptor in %s on line %d
+Warning: fopen(bz_open_002.txt): failed to open stream: Bad file %s in %s on line %d
 
 Warning: bzopen(): filename cannot be empty in %s on line %d
 bool(false)
 
-Warning: fopen(bz_open_002.txt): failed to open stream: Bad file descriptor in %s on line %d
+Warning: fopen(bz_open_002.txt): failed to open stream: Bad file %s in %s on line %d
 
 Warning: bzopen(): filename cannot be empty in %s on line %d
 bool(false)