ext/standard Deprecate passing empty string to realpath()

Author: arshidkv12

ext/standard/tests/file/readlink_realpath_variation3.phpt

@@ -43,10 +43,14 @@ bool(false)
 
 Warning: readlink(): %s in %s on line %d
 bool(false)
+
+Deprecated: realpath(): Passing empty string to realpath() is deprecated, use getcwd() instead in %s on line %d
 string(%d) "%s"
 -- Iteration4 --
 
 Warning: readlink(): %s in %s on line %d
 bool(false)
+
+Deprecated: realpath(): Passing empty string to realpath() is deprecated, use getcwd() instead in %s on line %d
 string(%d) "%s"
 Done

ext/standard/tests/file/realpath_bug77484.phpt

@@ -36,6 +36,7 @@ $rp2 = realpath('./');
 var_dump($old_cwd, $new_cwd, $rp0, $rp1, $rp2);
 ?>
 --EXPECTF--
+Deprecated: realpath(): Passing empty string to realpath() is deprecated, use getcwd() instead in %s on line %d
 string(%d) "%s"
 bool(false)
 bool(false)