Fix service inspect --pretty.
Fix service inspect --pretty.

Signed-off-by: Dong Chen <252dc6b7229d6040aded2d6fd307bed15f92f3c6@docker.com>
(cherry picked from commit 08ae4e544d5744e975da0f89c4f04baa2b8474f2)
Signed-off-by: Tibor Vass <3f1326dff4d85ad4ec938fb33f64575ace96db26@docker.com>

aduermael/docker.github.io,LuisBosquez/docker.github.io,londoncalling/docker.github.io,docker/docker.github.io,alexisbellido/docker.github.io,jzwlqx/denverdino.github.io,jzwlqx/denverdino.github.io,LuisBosquez/docker.github.io,BSWANG/denverdino.github.io,johnstep/docker.github.io,sanscontext/docker.github.io,JimGalasyn/docker.github.io,denverdino/denverdino.github.io,troy0820/docker.github.io,denverdino/denverdino.github.io,denverdino/docker.github.io,sanscontext/docker.github.io,menglingwei/denverdino.github.io,londoncalling/docker.github.io,johnstep/docker.github.io,Shopify/docker,rillig/docker.github.io,troy0820/docker.github.io,aduermael/docker.github.io,shubheksha/docker.github.io,joeuo/docker.github.io,joaofnfernandes/docker.github.io,anweiss/docker.github.io,alexisbellido/docker.github.io,menglingwei/denverdino.github.io,sanscontext/docker.github.io,BSWANG/denverdino.github.io,JimGalasyn/docker.github.io,thaJeztah/docker.github.io,Shopify/docker,londoncalling/docker.github.io,medallia/docker,gdevillele/docker.github.io,docker-zh/docker.github.io,shin-/docker.github.io,anweiss/docker.github.io,denverdino/denverdino.github.io,joeuo/docker.github.io,thaJeztah/docker.github.io,stainboy/docker,londoncalling/docker.github.io,joaofnfernandes/docker.github.io,shin-/docker.github.io,JimGalasyn/docker.github.io,LuisBosquez/docker.github.io,alexisbellido/docker.github.io,medallia/docker,thaJeztah/docker.github.io,aduermael/docker.github.io,shin-/docker.github.io,anweiss/docker.github.io,stainboy/docker,denverdino/denverdino.github.io,gdevillele/docker.github.io,bdwill/docker.github.io,denverdino/docker.github.io,bdwill/docker.github.io,denverdino/docker.github.io,docker/docker.github.io,thaJeztah/docker.github.io,docker-zh/docker.github.io,JimGalasyn/docker.github.io,jzwlqx/denverdino.github.io,rillig/docker.github.io,medallia/docker,sanscontext/docker.github.io,shubheksha/docker.github.io,gdevillele/docker.github.io,danix800/docker.github.io,danix800/docker.github.io,medallia/docker,bdwill/docker.github.io,danix800/docker.github.io,bdwill/docker.github.io,thaJeztah/docker.github.io,joaofnfernandes/docker.github.io,shin-/docker.github.io,docker/docker.github.io,stainboy/docker,docker/docker.github.io,docker-zh/docker.github.io,johnstep/docker.github.io,phiroict/docker,sanscontext/docker.github.io,menglingwei/denverdino.github.io,shubheksha/docker.github.io,johnstep/docker.github.io,troy0820/docker.github.io,jzwlqx/denverdino.github.io,anweiss/docker.github.io,docker-zh/docker.github.io,troy0820/docker.github.io,danix800/docker.github.io,joeuo/docker.github.io,londoncalling/docker.github.io,BSWANG/denverdino.github.io,BSWANG/denverdino.github.io,shubheksha/docker.github.io,alexisbellido/docker.github.io,gdevillele/docker.github.io,jzwlqx/denverdino.github.io,joaofnfernandes/docker.github.io,alexisbellido/docker.github.io,menglingwei/denverdino.github.io,gdevillele/docker.github.io,aduermael/docker.github.io,LuisBosquez/docker.github.io,joeuo/docker.github.io,docker-zh/docker.github.io,docker/docker.github.io,denverdino/docker.github.io,joeuo/docker.github.io,menglingwei/denverdino.github.io,joaofnfernandes/docker.github.io,denverdino/docker.github.io,JimGalasyn/docker.github.io,BSWANG/denverdino.github.io,phiroict/docker,phiroict/docker,bdwill/docker.github.io,shin-/docker.github.io,LuisBosquez/docker.github.io,rillig/docker.github.io,shubheksha/docker.github.io,Shopify/docker,phiroict/docker,rillig/docker.github.io,anweiss/docker.github.io,johnstep/docker.github.io,denverdino/denverdino.github.io,phiroict/docker