Correct typo in form fill environment functions

fpdfsdk/src/fpdfformfill.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "../include/fpdfview.h"
 #include "../include/fpdfformfill.h"
 #include "../include/fsdk_define.h"
 #include "../include/fsdk_mgr.h"
@@ skipping 23 matching lines @@
         {
                 delete pInterForm;
                 return -1;
         }
         
         int nType = pFormField->GetFieldType();
         delete pInterForm;
         return nType;
 }
 
-DLLEXPORT FPDF_FORMHANDLE STDCALL FPDFDOC_InitFormFillEnviroument(FPDF_DOCUMENT document, FPDF_FORMFILLINFO* formInfo)
+DLLEXPORT FPDF_FORMHANDLE STDCALL FPDFDOC_InitFormFillEnvironment(FPDF_DOCUMENT document, FPDF_FORMFILLINFO* formInfo)
 {
         if(!document || !formInfo || formInfo->version!=1)
                 return NULL;
         CPDF_Document * pDocument = (CPDF_Document*) document;
         CPDFDoc_Environment * pEnv = NULL;
         pEnv = new CPDFDoc_Environment(pDocument);
         if (!pEnv)
                 return NULL;
         pEnv->RegAppHandle(formInfo);
 
         if(pEnv->GetPDFDocument())
         {
                 CPDFSDK_Document* pSDKDoc = new CPDFSDK_Document(pEnv->GetPDFDocument(), pEnv);
                 if(pSDKDoc)
                         pEnv->SetCurrentDoc(pSDKDoc);
         }
         return pEnv;
 }
 
-DLLEXPORT void STDCALL FPDFDOC_ExitFormFillEnviroument(FPDF_FORMHANDLE hHandle)
+DLLEXPORT void STDCALL FPDFDOC_ExitFormFillEnvironment(FPDF_FORMHANDLE hHandle)
 {
         if(!hHandle)
                 return; 
         CPDFSDK_Document* pSDKDoc = ((CPDFDoc_Environment*)hHandle)->GetCurrentDoc();
         if(pSDKDoc)
         {
                 ((CPDFDoc_Environment*)hHandle)->SetCurrentDoc(NULL);
                 delete pSDKDoc;
         }
         delete (CPDFDoc_Environment*)hHandle;
@@ skipping 357 matching lines @@
                         if (bExistCAAction)
                         {
                                 CPDF_Action action = aa.GetAction(CPDF_AAction::ClosePage);
                                 pActionHandler->DoAction_Page(action, CPDF_AAction::ClosePage, pSDKDoc);
                         }
                 }
         }
 }