When I began testing OpenVPN v2.1_rc9 I was having trouble authenticating to the...

When I began testing OpenVPN v2.1_rc9 I was having trouble authenticating to the MS Active Directory through auth-pam and Samba. I used the following line in my configs (without the linebreak of course):

plugin /opt/openvpn/openvpn-auth-pam.so
                   "openvpn login OURDOMAIN+USERNAME password PASSWORD"

Finally I turned on more verbose logging and found that the plugin did
not recognize "USERNAME" as something to replace, because it expected
the string to be surrounded by whitespace.  I wrote the following patch
to correct this.  I hope you find it useful,

Signed-off-by: David Sommerseth <dazo@users.sourceforge.net>