Modify the error message

Signed-off-by: zhouhao <zhouhao@cn.fujitsu.com>

schema/fs.go

@@ -205,7 +205,7 @@ var _escData = map[string]*_escFile{
 	"/config-schema.json": {
 		local:   "config-schema.json",
 		size:    774,
-		modtime: 1479372487,
+		modtime: 1483690724,
 		compressed: `
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@@ -219,7 +219,7 @@ YiIJ+f9eV27hNWIW4vOjMSyzPd/WjQLTfejq2Dniyl26+a1/0AxfJ+R68vcHl7htejl9p9RHd+l+AgAA
 	"/content-descriptor.json": {
 		local:   "content-descriptor.json",
 		size:    836,
-		modtime: 1479372487,
+		modtime: 1483690724,
 		compressed: `
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@@ -234,23 +234,23 @@ DLQ9RAMAAA==
 	"/defs-config.json": {
 		local:   "defs-config.json",
 		size:    2236,
-		modtime: 1481704571,
+		modtime: 1484547391,
 		compressed: `
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 `,
 	},
 
 	"/defs-image.json": {
 		local:   "defs-image.json",
 		size:    2736,
-		modtime: 1481704392,
+		modtime: 1483690724,
 		compressed: `
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@@ -270,7 +270,7 @@ AP//R591MrAKAAA=
 	"/defs.json": {
 		local:   "defs.json",
 		size:    3193,
-		modtime: 1470056192,
+		modtime: 1483690724,
 		compressed: `
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@@ -289,7 +289,7 @@ VfOwZWpT3H45DszfbvA3AAD//0JyEpx5DAAA
 	"/image-layout-schema.json": {
 		local:   "image-layout-schema.json",
 		size:    414,
-		modtime: 1480548955,
+		modtime: 1484547391,
 		compressed: `
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@@ -301,24 +301,24 @@ ngEAAA==
 
 	"/image-manifest-schema.json": {
 		local:   "image-manifest-schema.json",
-		size:    1139,
-		modtime: 1481704392,
+		size:    1134,
+		modtime: 1484547392,
 		compressed: `
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 `,
 	},
 
 	"/manifest-list-schema.json": {
 		local:   "manifest-list-schema.json",
 		size:    1101,
-		modtime: 1479372487,
+		modtime: 1483690724,
 		compressed: `
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schema/image-manifest-schema.json

@@ -29,7 +29,7 @@
       }
     },
     "annotations": {
-      "id": "https://opencontainers.org/schema/image/manifest-list/annotations",
+      "id": "https://opencontainers.org/schema/image/manifest/annotations",
       "$ref": "defs-image.json#/definitions/annotations"
     }
   },