Fix test case

Author: cmb69

ext/bz2/tests/002.phpt

@@ -93,7 +93,7 @@ resource(%d) of type (stream)
 Warning: fopen(bz_open_002.txt): Failed to open stream: `br' is not a valid mode for fopen in %s on line %d
 bzopen(): Argument #1 ($file) must be of type string or file-resource, bool given
 
-Warning: fopen(bz_open_002.txt): Failed to open stream: `br' is not a valid mode for fopen %s in %s on line %d
+Warning: fopen(bz_open_002.txt): Failed to open stream: `br' is not a valid mode for fopen in %s on line %d
 bzopen(): Argument #1 ($file) must be of type string or file-resource, bool given
 
 Warning: bzopen(): cannot write to a stream opened in read only mode in %s on line %d