Attempted fix for display_error

display_error

--- a/hphp/runtime/ext/std/ext_std_misc.cpp
+++ b/hphp/runtime/ext/std/ext_std_misc.cpp
@@ -46,7 +46,7 @@ IMPLEMENT_THREAD_LOCAL(std::string, s_misc_highlight_default_default);
 IMPLEMENT_THREAD_LOCAL(std::string, s_misc_highlight_default_html);
 IMPLEMENT_THREAD_LOCAL(std::string, s_misc_display_errors);

-const std::string s_1("1"), s_2("2"), s_stdout("stdout"), s_stderr("stderr");
+const std::string s_0("0"), s_1("1"), s_2("2"), s_stdout("stdout"), s_stderr("stderr");
 const double k_INF = std::numeric_limits<double>::infinity();
 const double k_NAN = std::numeric_limits<double>::quiet_NaN();

@@ -111,6 +111,9 @@ void StandardExtension::threadInitMisc() {
       "display_errors", RuntimeOption::EnableHipHopSyntax ? "stderr" : "1",
       IniSetting::SetAndGet<std::string>(
         [](const std::string& value) {
+          if (value == s_0) {
+            return true;
+          }
           if (value == s_1 || value == s_stdout) {
             Logger::SetStandardOut(stdout);
             return true;