Update policy description for SystemUse24HourClock policy.

chrome/app/policy/policy_templates.json

Index: chrome/app/policy/policy_templates.json
diff --git a/chrome/app/policy/policy_templates.json b/chrome/app/policy/policy_templates.json
index 10ad804e04cdcec44eaee5438caa82435b799671..38982764009fee038be7da2f0819f7f80c1b3b16 100644
--- a/chrome/app/policy/policy_templates.json
+++ b/chrome/app/policy/policy_templates.json
@@ -4076,7 +4076,11 @@
       'example_value': True,
       'id': 236,
       'caption': '''Use 24 hour clock by default''',
-      'desc': '''Specifies the clock format be used for the device. Users can override clock format for the current session. However, on logout it is set back to the specified value. If an empty string is provided, device owner preference is used.''',
+      'desc': '''Specifies the clock format be used for the device.
+
+      This policy configures the clock format to use on the login screen and as a default for user sessions. Users can still override the clock format for their account.
+
+      If this policy is not set, the device will default to a 12 hour clock format.''',

[Alexander Alekseev, 2013/08/21 03:54:22]

See:

chrome/browser/chromeos/system/ash_system_tray_delegate.cc:913: bool
ShouldUse24HourClock() const

It actually defaults to 24-hour format.

[Mattias Nissler (ping if slow), 2013/08/21 08:10:08]

Whoops, thanks for pointing out! Fixed.

     },
     {
       'name': 'ShowLogoutButtonInTray',