Run (make vendor)

Temporarily vendor opencontainers/image-spec from a fork
to fix "id" value duplication, which is detected and
refused by gojsonschema now
( https://github.com/opencontainers/image-spec/pull/750 ).

Signed-off-by: Miloslav Trmač <mitr@redhat.com>

vendor/github.com/opencontainers/image-spec/schema/fs.go

@@ -224,32 +224,32 @@ MzuH6GcAAAD//0pj2wvTCgAA
 
 	"/content-descriptor.json": {
 		local:   "content-descriptor.json",
-		size:    1085,
-		modtime: 1515512099,
+		size:    1079,
+		modtime: 1537191585,
 		compressed: `
-H4sIAAAAAAAC/5yTwW7UMBCG73mKUVqpl27NoeIQVb3AnQPcEAevPY6nbGwznlW1oL47mniXJoAo3Vsy
-+r+Zz8n4RwfQe6yOqQjl1A/QfyiY3uUklhIy6BMmgffHUGb4WNBRIGdn4lpbXFYXcbKKR5EyGPNQc9q0
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-ERcrb5b9zhBc4s2zO7r2jN/2xKhin3+/McttXS9NB/Cle+p+BgAA///HjexwPQQAAA==
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+dIbaEm+G3WzZM/44EKMqff37riz3dL0uHcC37qn7HQAA//9DKIMKNwQAAA==
 `,
 	},
 
 	"/defs-descriptor.json": {
 		local:   "defs-descriptor.json",
-		size:    922,
-		modtime: 1515512099,
+		size:    844,
+		modtime: 1537191664,
 		compressed: `
-H4sIAAAAAAAC/6STX2/TMBTF3/spLl7FgDZN4QFp0Ria2DsP42lTV93ZN/Ed8R/ZrqYy9bsjJ1naFYFA
-PCSyj67Pub8b52kCIBRFGdgndlZUIK6oZst5F8FjSCw3LQZIDr56sl+cTciWAlwNx1yAa0+Sa5bYecx7
-09FFVJBzAIQhxfht62mUAASrnKpT8rEqS+fJyueMuHChKaPUZLBkgw2Vakwt927zZ6/Ue4uYAttmr3tM
-iUKHd3d7Wdxg8WNZnK32y1cn09fF3XoxWz0t5+8/fNyVf1c2FV3Erk8SihuK6ZDuaLhJE8iw9ck1Ab1m
-CVKT/B43Bvqz4GrIRe7+gWSaA9tuOwDA6Tm2jQuctLmozvOoFKmL03+cwMA1e/O5up0t1sVqVN6+q/L6
-srhZFmef1sVqdkS4CW38Ax9Cyz1ELoQ6OAOPmqWGpDkOVGBwC/cEyj3a1qEi9Wv/GAJu9zInMoe5vycF
-ELULBvNXEJvAYtB3LzDQWpfw5fX8n7t46Dc2PQ1UZz9FdVw8RGdPyoPfojTor7ve+/cw50l+dpOfAQAA
-//8aH/C2mgMAAA==
+H4sIAAAAAAAC/5SST2/TTBDG7/kU826jt0DiOHBAqlWKKnrnUE6t0mi6O7aneP9od6IqVPnuaG03SYtA
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+oGofLea/oDaR1ajvXmCgc17w5XoCqGmkOvcZqtPiIXl3Uh4tcmkxXPdpw3uczCQ/u8nPAAAA///5nDLG
+TAMAAA==
 `,
 	},
 

vendor/github.com/opencontainers/image-spec/schema/schema.go

@@ -53,6 +53,7 @@ var (
 		"https://opencontainers.org/schema/image/index/",
 		"https://opencontainers.org/schema/image/manifest/",
 		"https://opencontainers.org/schema/image/",
+		"https://opencontainers.org/schema/descriptor/",
 		"https://opencontainers.org/schema/",
 	}