crypt32: Implement PFXExportCertStore on top of PFXExportCertStoreEx.

dlls/crypt32/crypt32.spec

@@ -216,7 +216,7 @@
 @ stdcall I_CryptSetTls(long ptr)
 @ stdcall I_CryptUninstallAsn1Module(long)
 @ stub I_CryptUninstallOssGlobal
-@ stub PFXExportCertStore
+@ stdcall PFXExportCertStore(ptr ptr ptr long)
 @ stdcall PFXExportCertStoreEx(ptr ptr ptr ptr long)
 @ stub PFXImportCertStore
 @ stub RegCreateHKCUKeyExU

dlls/crypt32/encode.c

@@ -4499,6 +4499,12 @@ BOOL WINAPI CryptEncodeObjectEx(DWORD dwCertEncodingType, LPCSTR lpszStructType,
     return ret;
 }
 
+BOOL WINAPI PFXExportCertStore(HCERTSTORE hStore, CRYPT_DATA_BLOB *pPFX,
+ LPCWSTR szPassword, DWORD dwFlags)
+{
+    return PFXExportCertStoreEx(hStore, pPFX, szPassword, NULL, dwFlags);
+}
+
 BOOL WINAPI PFXExportCertStoreEx(HCERTSTORE hStore, CRYPT_DATA_BLOB *pPFX,
  LPCWSTR szPassword, void *pvReserved, DWORD dwFlags)
 {