changed description of one test

test/pdo_sqlsrv/PDO_ConnPool_Unix.phpt

@@ -1,5 +1,5 @@
 --TEST--
-SQLSRV Connection Pooling Test on Unix
+PDO Connection Pooling Test on Unix
 --DESCRIPTION--
 This test assumes odbcinst.ini has not been modified. 
 This test also requires root privileges to modify odbcinst.ini file on Linux.