pvfs2-server reports server shutdown when given -h flag

[mtmoore]

The last two lines shouldn't be printed when help is printed:

sbin/pvfs2-server -h[E 06:40:35.188833] Usage: sbin/pvfs2-server: [OPTIONS] <global_config_file>
[E 06:40:35.189270] -d, --foreground will keep server in the foreground
[E 06:40:35.189284] -f, --mkfs will cause server to create file system storage and exit
[E 06:40:35.189294] -h, --help will show this message
[E 06:40:35.189303] -r, --rmfs will cause server to remove file system storage and exit
[E 06:40:35.189312] -v, --version output version information and exit
[E 06:40:35.189320] -p, --pidfile <file> write process id to file
[E 06:40:35.189328] -a, --alias <alias> use the specified alias for this node
[D 06:40:35.189355] *** server shutdown in progress ***
[D 06:40:35.189369] [*] halting logging interface

[mtmoore]

Cleanly exit if help argument passed. Patch at:
 http://www.pvfs.org/fisheye/changelog/PVFS/?cs=Orange-Branch:mtmoore:20110608001639

[xrumer]

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