cli: Fixed spaces in install usage
cli: Fixed spaces in install usage

Signed-off-by: aeneasr <f7b948dad1afaad097aaa9ebb817c67370577dc9@serlo.org>

pkdevbox/flynn,justintung/flynn,GrimDerp/flynn,shads196770/flynn,kgrz/flynn,tonicbupt/flynn,jzila/flynn,schatt/flynn,lmars/flynn,supermario/flynn,ozum/flynn,pkdevbox/flynn,whouses/flynn,kgrz/flynn,clifff/flynn,benbjohnson/flynn,shads196770/flynn,technosophos/flynn,jzila/flynn,ozum/flynn,rikur/flynn,benbjohnson/flynn,rikur/flynn,clifff/flynn,clifff/flynn,ozum/flynn,clifff/flynn,arekkas/flynn,felixrieseberg/flynn,GrimDerp/flynn,josephglanville/flynn,arekkas/flynn,pkdevbox/flynn,rikur/flynn,technosophos/flynn,lmars/flynn,whouses/flynn,josephglanville/flynn,philiplb/flynn,rikur/flynn,josephglanville/flynn,TribeMedia/flynn,Brandywine2161/flynn,benbjohnson/flynn,TribeMedia/flynn,whouses/flynn,tonicbupt/flynn,supermario/flynn,TribeMedia/flynn,Brandywine2161/flynn,josephglanville/flynn,technosophos/flynn,ozum/flynn,kgrz/flynn,TribeMedia/flynn,kgrz/flynn,justintung/flynn,supermario/flynn,pkdevbox/flynn,justintung/flynn,whouses/flynn,GrimDerp/flynn,felixrieseberg/flynn,lmars/flynn,tonicbupt/flynn,technosophos/flynn,whouses/flynn,kgrz/flynn,Brandywine2161/flynn,shads196770/flynn,pkdevbox/flynn,jzila/flynn,flynn/flynn,technosophos/flynn,kgrz/flynn,schatt/flynn,clifff/flynn,schatt/flynn,rikur/flynn,benbjohnson/flynn,whouses/flynn,philiplb/flynn,felixrieseberg/flynn,rikur/flynn,josephglanville/flynn,pkdevbox/flynn,Brandywine2161/flynn,lmars/flynn,schatt/flynn,TribeMedia/flynn,tonicbupt/flynn,josephglanville/flynn,arekkas/flynn,justintung/flynn,shads196770/flynn,felixrieseberg/flynn,GrimDerp/flynn,benbjohnson/flynn,philiplb/flynn,arekkas/flynn,flynn/flynn,flynn/flynn,philiplb/flynn,flynn/flynn,shads196770/flynn,ozum/flynn,tonicbupt/flynn,jzila/flynn,lmars/flynn,clifff/flynn,flynn/flynn,felixrieseberg/flynn,justintung/flynn,jzila/flynn,GrimDerp/flynn,ozum/flynn,supermario/flynn,TribeMedia/flynn,supermario/flynn,philiplb/flynn,supermario/flynn,Brandywine2161/flynn,GrimDerp/flynn,arekkas/flynn,shads196770/flynn,justintung/flynn,jzila/flynn,Brandywine2161/flynn,schatt/flynn,benbjohnson/flynn,schatt/flynn