turned completion subcommand into option

tablizer.pod

@@ -31,6 +31,7 @@ tablizer - Manipulate tabular output of other programs
       -t, --sort-time          sort according to time string
 
     Other Flags:
+          --completion <shell> Generate the autocompletion script for <shell>
       -d, --debug              Enable debugging
       -h, --help               help for tablizer
       -m, --man                Display manual page
@@ -229,19 +230,25 @@ precedence over environment variables.
 
 =head2 COMPLETION
 
+Shell completion for command line options  can be enabled by using the
+B<--completion>  flag. The  required  parameter is  the  name of  your
+shell. Currently supported are: bash, zsh, fish and powershell.
+
+Detailed instructions:
+
 =over
 
 =item Bash:
 
-   source <(%[1]s completion bash)
+   source <(tablizer --completion bash)
 
 To load completions for each session, execute once:
 
   # Linux:
-  $ tablizer completion bash > /etc/bash_completion.d/%[1]s
+  $ tablizer --completion bash > /etc/bash_completion.d/tablizer
 
   # macOS:
-  $ tablizer completion bash > $(brew --prefix)/etc/bash_completion.d/%[1]s
+  $ tablizer --completion bash > $(brew --prefix)/etc/bash_completion.d/tablizer
 
 =item Zsh:
 
@@ -252,25 +259,25 @@ you will need to enable it.  You can execute the following once:
 
 To load completions for each session, execute once:
 
-  $ tablizer completion zsh > "${fpath[1]}/_%[1]s"
+  $ tablizer --completion zsh > "${fpath[1]}/_tablizer"
 
 You will need to start a new shell for this setup to take effect.
 
 =item fish:
 
-   tablizer completion fish | source
+   tablizer --completion fish | source
 
 To load completions for each session, execute once:
 
-   tablizer completion fish > ~/.config/fish/completions/%[1]s.fish
+   tablizer --completion fish > ~/.config/fish/completions/tablizer.fish
 
 =item PowerShell:
 
-   tablizer completion powershell | Out-String | Invoke-Expression
+   tablizer --completion powershell | Out-String | Invoke-Expression
 
 To load completions for every new session, run:
 
-   tablizer completion powershell > tablizer.ps1
+   tablizer --completion powershell > tablizer.ps1
 
 and source this file from your PowerShell profile.