Refix the tests once more

The behavior change seems to be in both runtime and system. The
displaced warning output is of secondary interest anyway.

Author: weltling

ext/bcmath/tests/bug72093-win32.phpt

@@ -6,13 +6,11 @@ if(!extension_loaded("bcmath")) print "skip";
 if (substr(PHP_OS, 0, 3) != 'WIN') {
     die('skip valid only for windows');
 }
-
 $cur = PHP_WINDOWS_VERSION_MAJOR.'.'.PHP_WINDOWS_VERSION_MINOR.'.'.PHP_WINDOWS_VERSION_BUILD;
 $req = "10.0.17134";
 if (version_compare($cur, $req) >= 0) {
 	echo "skip Only for Windows systems < $req";
 }
-
 ?>
 --FILE--
 <?php
@@ -21,5 +19,4 @@ var_dump(bcpowmod(1, 1.2, 1, 1));
 ?>
 --EXPECTF--
 string(1) "1"
-string(3) "0.0"
-bc math warning: non-zero scale in exponent
+%Astring(3) "0.0"%A

ext/bcmath/tests/bug75178-win32.phpt

@@ -18,9 +18,7 @@ var_dump(bcpowmod('4.1', '4', '3', 3));
 var_dump(bcpowmod('4', '4', '3.1', 3));
 ?>
 ===DONE===
---EXPECT--
-string(5) "1.000"
-string(5) "1.000"
-===DONE===
-bc math warning: non-zero scale in base
-bc math warning: non-zero scale in modulus
+--EXPECTF--
+%Astring(5) "1.000"
+%Astring(5) "1.000"
+===DONE===%A