[devdocsgjs/main: 1634/1867] Adjust `docs:page` version handling

[Andy Holmes <andyholmes src gnome org>]

commit 21827a6b69d0f16ea43a63b59b4226f3d0f82dc3
Author: Richard Michael <rmichael edgeofthenet org>
Date:   Fri Apr 30 12:54:40 2021 +0200

    Adjust `docs:page` version handling
    
    - Remove `--version` option
    - Add `@|~` version notation, consistent with other commands

 lib/tasks/docs.thor | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/lib/tasks/docs.thor b/lib/tasks/docs.thor
index 958da29e..7ac6f1df 100644
--- a/lib/tasks/docs.thor
+++ b/lib/tasks/docs.thor
@@ -40,8 +40,7 @@ class DocsCLI < Thor
     TTY::Pager.new.page(output)
   end
 
-  desc 'page <doc> [path] [--version] [--verbose] [--debug]', 'Generate a page (no indexing)'
-  option :version, type: :string
+  desc 'page (<doc> | <doc@version>) [path] [--verbose] [--debug]', 'Generate a page (no indexing)'
   option :verbose, type: :boolean
   option :debug, type: :boolean
   def page(name, path = '')
@@ -56,7 +55,8 @@ class DocsCLI < Thor
       Docs.install_report :filter, :request, :doc
     end
 
-    if Docs.generate_page(name, options[:version], path)
+    name, version = name.split(/@|~/)
+    if Docs.generate_page(name, version, path)
       puts 'Done'
     else
       puts "Failed!#{' (try running with --debug for more information)' unless options[:debug]}"