Move a unique_ptr initialisation out of the initialisation list in fsdk_mgr.cpp

fpdfsdk/src/fsdk_mgr.cpp

Index: fpdfsdk/src/fsdk_mgr.cpp
diff --git a/fpdfsdk/src/fsdk_mgr.cpp b/fpdfsdk/src/fsdk_mgr.cpp
index 841bd197e0166f9a933e87bfc0a046d9a5e77c52..2797bc8f9a7f186f31adca1fe0a18a56b328b5cf 100644
--- a/fpdfsdk/src/fsdk_mgr.cpp
+++ b/fpdfsdk/src/fsdk_mgr.cpp
@@ -210,10 +210,8 @@ FX_SYSTEMTIME CFX_SystemHandler::GetLocalTime() {
 
 CPDFDoc_Environment::CPDFDoc_Environment(CPDF_Document* pDoc,
                                          FPDF_FORMFILLINFO* pFFinfo)
-    : m_pInfo(pFFinfo),
-      m_pSDKDoc(NULL),
-      m_pPDFDoc(pDoc),
-      m_pSysHandler(new CFX_SystemHandler(this)) {
+    : m_pInfo(pFFinfo), m_pSDKDoc(NULL), m_pPDFDoc(pDoc) {
+  m_pSysHandler.reset(new CFX_SystemHandler(this));
 }
 
 CPDFDoc_Environment::~CPDFDoc_Environment() {