Fix computation of service list in bash completion
Fix computation of service list in bash completion

The previous approach assumed that the service list could be extracted
from a single file. It did not follow extends and overrides.

Signed-off-by: Harald Albers <64b2b6d12bfe4baae7dad3d018f8cbf6b0e7a044@albersweb.de>

docker/docker.github.io,aduermael/docker.github.io,joaofnfernandes/docker.github.io,denverdino/compose,menglingwei/denverdino.github.io,GM-Alex/compose,hoogenm/compose,johnstep/docker.github.io,aduermael/docker.github.io,denverdino/denverdino.github.io,jzwlqx/denverdino.github.io,dnephin/compose,joaofnfernandes/docker.github.io,hoogenm/compose,dbdd4us/compose,aduermael/docker.github.io,denverdino/denverdino.github.io,vdemeester/compose,twitherspoon/compose,docker-zh/docker.github.io,sanscontext/docker.github.io,londoncalling/docker.github.io,BSWANG/denverdino.github.io,LuisBosquez/docker.github.io,johnstep/docker.github.io,danix800/docker.github.io,thaJeztah/docker.github.io,twitherspoon/compose,denverdino/docker.github.io,jzwlqx/denverdino.github.io,LuisBosquez/docker.github.io,shin-/docker.github.io,moxiegirl/compose,jzwlqx/denverdino.github.io,BSWANG/denverdino.github.io,shubheksha/docker.github.io,joeuo/docker.github.io,joeuo/docker.github.io,troy0820/docker.github.io,phiroict/docker,sdurrheimer/compose,sanscontext/docker.github.io,menglingwei/denverdino.github.io,anweiss/docker.github.io,denverdino/docker.github.io,alexisbellido/docker.github.io,londoncalling/docker.github.io,docker-zh/docker.github.io,BSWANG/denverdino.github.io,tiry/compose,phiroict/docker,moxiegirl/compose,docker/docker.github.io,docker-zh/docker.github.io,thaJeztah/docker.github.io,phiroict/docker,andrewgee/compose,LuisBosquez/docker.github.io,JimGalasyn/docker.github.io,thaJeztah/docker.github.io,bdwill/docker.github.io,docker-zh/docker.github.io,danix800/docker.github.io,danix800/docker.github.io,JimGalasyn/docker.github.io,mdaue/compose,dbdd4us/compose,thaJeztah/docker.github.io,shin-/docker.github.io,swoopla/compose,alexisbellido/docker.github.io,shin-/compose,BSWANG/denverdino.github.io,denverdino/docker.github.io,rillig/docker.github.io,joeuo/docker.github.io,JimGalasyn/docker.github.io,sanscontext/docker.github.io,thaJeztah/compose,GM-Alex/compose,anweiss/docker.github.io,menglingwei/denverdino.github.io,docker/docker.github.io,joeuo/docker.github.io,bdwill/docker.github.io,denverdino/denverdino.github.io,JimGalasyn/docker.github.io,michael-k/docker-compose,aduermael/docker.github.io,bdwill/docker.github.io,sanscontext/docker.github.io,swoopla/compose,schmunk42/compose,jrabbit/compose,menglingwei/denverdino.github.io,gdevillele/docker.github.io,thaJeztah/compose,johnstep/docker.github.io,jzwlqx/denverdino.github.io,funkyfuture/docker-compose,shin-/docker.github.io,KalleDK/compose,rillig/docker.github.io,funkyfuture/docker-compose,vdemeester/compose,alexisbellido/docker.github.io,JimGalasyn/docker.github.io,shubheksha/docker.github.io,michael-k/docker-compose,joaofnfernandes/docker.github.io,sdurrheimer/compose,johnstep/docker.github.io,alexisbellido/docker.github.io,anweiss/docker.github.io,joaofnfernandes/docker.github.io,shubheksha/docker.github.io,shin-/compose,anweiss/docker.github.io,troy0820/docker.github.io,LuisBosquez/docker.github.io,jrabbit/compose,anweiss/docker.github.io,shin-/docker.github.io,denverdino/docker.github.io,bdwill/docker.github.io,tiry/compose,docker/docker.github.io,johnstep/docker.github.io,sanscontext/docker.github.io,phiroict/docker,alexisbellido/docker.github.io,londoncalling/docker.github.io,denverdino/docker.github.io,gdevillele/docker.github.io,mdaue/compose,gdevillele/docker.github.io,jzwlqx/denverdino.github.io,denverdino/denverdino.github.io,shubheksha/docker.github.io,rillig/docker.github.io,shin-/docker.github.io,denverdino/compose,londoncalling/docker.github.io,joaofnfernandes/docker.github.io,schmunk42/compose,denverdino/denverdino.github.io,LuisBosquez/docker.github.io,gdevillele/docker.github.io,menglingwei/denverdino.github.io,BSWANG/denverdino.github.io,shubheksha/docker.github.io,KalleDK/compose,joeuo/docker.github.io,bdwill/docker.github.io,dnephin/compose,phiroict/docker,docker/docker.github.io,londoncalling/docker.github.io,thaJeztah/docker.github.io,andrewgee/compose,gdevillele/docker.github.io,troy0820/docker.github.io,rillig/docker.github.io,docker-zh/docker.github.io,danix800/docker.github.io,troy0820/docker.github.io