Please describe the problem:
When adding the SuspendCommand option in gdm and setting SystemMenu=true gdm
does display a hibernate option but never executes it. When enabling debug in
gdm.conf  the syslog says:

"Request for configuration key greeter/SystemMenu=true, but not type STRING"



Steps to reproduce:
1. in gdm.conf set: SystemMenu=true, SuspendCommand=/sbin/shutdown (just
something valid) and Enable=true in the Debug section
2. (re)start gdm
3. click on the displayed button for suspending



Actual results:
The command giben by the SuspendCommand option is not executed and a syslog
entry is created saying: "Request for configuration key greeter/SystemMenu=true,
but not type STRING"

Expected results:
The command giben by the SuspendCommand option should be executed.

Does this happen every time?
yep

Other information:
I did a search and I think the error is in gdm.c:2300 in function
gdm_handle_message. There is a statement:

gdm_get_value_string ( GDM_KEY_SYSTEM_MENUE) 

that really should be:

gdm_get_value_bool ( GDM_KEY_SYSTEM_MENUE) 

or something similar as it is actually a boolean option. Trying to read it as a
string returns NULL and so suspend_machine isn't executed.