servo: Merge #11849 - Fix preference name (from paulrouget:prefNameUpdate); r=jdm

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Follow up of https://github.com/servo/servo/pull/11735. `.enabled` is missing in the python scripts.

Source-Repo: https://github.com/servo/servo
Source-Revision: 86d65b60647c185e656e3ae607a3762e667974ad

servo/python/servo/package_commands.py

@@ -90,7 +90,7 @@ class PackageCommands(CommandBase):
             servo_args = ['-w', '-b',
                           '--pref', 'dom.mozbrowser.enabled',
                           '--pref', 'dom.forcetouch.enabled',
-                          '--pref', 'shell.builtin-key-shortcuts=false',
+                          '--pref', 'shell.builtin-key-shortcuts.enabled=false',
                           path.join(browserhtml_path, 'out', 'index.html')]
 
             runservo = os.open(dir_to_package + 'runservo.sh', os.O_WRONLY | os.O_CREAT, int("0755", 8))

servo/python/servo/post_build_commands.py

@@ -114,7 +114,7 @@ class PostBuildCommands(CommandBase):
             args = args + ['-w',
                            '--pref', 'dom.mozbrowser.enabled',
                            '--pref', 'dom.forcetouch.enabled',
-                           '--pref', 'shell.builtin-key-shortcuts=false',
+                           '--pref', 'shell.builtin-key-shortcuts.enabled=false',
                            path.join(browserhtml_path, 'out', 'index.html')]
 
         # Borrowed and modified from: