-N option is used to append a Capsule Header to an existing
FMP capsule image with its ImageTypeId supported by the system.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Star Zeng <star.zeng@intel.com>
---
 MdeModulePkg/Application/CapsuleApp/CapsuleApp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/MdeModulePkg/Application/CapsuleApp/CapsuleApp.c b/MdeModulePkg/Application/CapsuleApp/CapsuleApp.c
index 95aa20760560..3a87439f104e 100644
--- a/MdeModulePkg/Application/CapsuleApp/CapsuleApp.c
+++ b/MdeModulePkg/Application/CapsuleApp/CapsuleApp.c
@@ -779,7 +779,8 @@ PrintUsage (
   Print(L"  -E:  Dump UEFI ESRT table info.\n");
   Print(L"  -G:  Convert a BMP file to be an UX capsule,\n");
   Print(L"       according to Windows Firmware Update document\n");
-  Print(L"  -N:  Append a Capsule Header to an existing capsule image,\n");
+  Print(L"  -N:  Append a Capsule Header to an existing FMP capsule image\n");
+  Print(L"       with its ImageTypeId supported by the system,\n");
   Print(L"       according to Windows Firmware Update document\n");
   Print(L"  -O:  Output new Capsule file name\n");
   Print(L"  -D:  Dump Capsule image header information, image payload information if it is an UX capsule\n");
-- 
2.7.0.windows.1

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