Update ttrpc to fix status check error.

Signed-off-by: Lantao Liu <[email protected]>

Author: Random-Liu

go.mod

@@ -10,7 +10,7 @@ require (
 	github.com/containerd/continuity v0.0.0-20190426062206-aaeac12a7ffc // indirect
 	github.com/containerd/fifo v0.0.0-20190226154929-a9fb20d87448 // indirect
 	github.com/containerd/go-runc v0.0.0-20180907222934-5a6d9f37cfa3
-	github.com/containerd/ttrpc v0.0.0-20190826154248-f969a7f076a2
+	github.com/containerd/ttrpc v0.0.0-20190828154514-0e0f228740de
 	github.com/containerd/typeurl v0.0.0-20180627222232-a93fcdb778cd
 	github.com/docker/distribution v2.7.1+incompatible // indirect
 	github.com/docker/go-events v0.0.0-20190806004212-e31b211e4f1c // indirect

go.sum

@@ -28,6 +28,8 @@ github.com/containerd/ttrpc v0.0.0-20190613183316-1fb3814edf44 h1:vG5QXCUakUhR2C
 github.com/containerd/ttrpc v0.0.0-20190613183316-1fb3814edf44/go.mod h1:PvCDdDGpgqzQIzDW1TphrGLssLDZp2GuS+X5DkEJB8o=
 github.com/containerd/ttrpc v0.0.0-20190826154248-f969a7f076a2 h1:uR0Zz83OrfOhXWwDdwVYirFZI/LMdZXMzCHzfnQFO9w=
 github.com/containerd/ttrpc v0.0.0-20190826154248-f969a7f076a2/go.mod h1:PvCDdDGpgqzQIzDW1TphrGLssLDZp2GuS+X5DkEJB8o=
+github.com/containerd/ttrpc v0.0.0-20190828154514-0e0f228740de h1:dlfGmNcE3jDAecLqwKPMNX6nk2qh1c1Vg1/YTzpOOF4=
+github.com/containerd/ttrpc v0.0.0-20190828154514-0e0f228740de/go.mod h1:PvCDdDGpgqzQIzDW1TphrGLssLDZp2GuS+X5DkEJB8o=
 github.com/containerd/typeurl v0.0.0-20180627222232-a93fcdb778cd h1:JNn81o/xG+8NEo3bC/vx9pbi/g2WI8mtP2/nXzu297Y=
 github.com/containerd/typeurl v0.0.0-20180627222232-a93fcdb778cd/go.mod h1:Cm3kwCdlkCfMSHURc+r6fwoGH6/F1hH3S4sg0rLFWPc=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=