manually fix truthiness in flib/thrift/core/protocol/simplejson/TSimpleJSONProtocol.php

Summary: the codemod skips this file by default

Reviewed By: vassilmladenov

Differential Revision: D95602657

fbshipit-source-id: e1ef8abb2266f92873916b6533de487f2c79b365

Author: viratyosin

third-party/thrift/src/thrift/lib/hack/src/protocol/simplejson/TSimpleJSONProtocol.php

@@ -637,10 +637,10 @@ protected function readNumStr()[write_props]: (string, int) {
     }
     $str = $this->buffer->readAll($count);
     if (
-      !PHP\fb\preg_match_simple(
+      !HH\legacy_is_truthy(PHP\fb\preg_match_simple(
         '/^[+-]?(?:0|[1-9]\d*)(?:\.\d+)?(?:[eE][+-]?\d+)?$/',
         $str,
-      )
+      ))
     ) {
       throw new TProtocolException(
         'TSimpleJSONProtocol: Invalid json number '.$str,