only-en - dictionary updates, pick-25

(cherry picked from commit 93d64fb)

Author: thomaskoslowski

src/common/en/agent_linux.asciidoc

@@ -649,7 +649,7 @@ The command line call presented here is therefore primarily for testing and debu
              --password 'PTEGDYXBFXVGNDPRL'
 ----
 
-The biggest difference here is the modified `register-new` sub-command, which is used to request registration _and_ creation of a new host in the {CMK} site.
+The biggest difference here is the modified `register-new` subcommand, which is used to request registration _and_ creation of a new host in the {CMK} site.
 The name of the host is the one stored in the `$HOSTNAME` environment variable.
 The subsequent confirmation of the certificate is the same as shown in the last section.