[configure.ac] fix logic on when ssh-rand-helper is installed.
[sshd_config] put back in line that tells what PATH was compiled into sshd.
diff --git a/sshd_config b/sshd_config
index 9e62e9c..3502ab6 100644
--- a/sshd_config
+++ b/sshd_config
@@ -3,6 +3,8 @@
 # This is the sshd server system-wide configuration file.  See sshd(8)
 # for more information.
 
+# This sshd was compiled with PATH=/usr/bin:/bin:/usr/sbin:/sbin
+
 # The stategy used for options in the default sshd_config shipped with
 # OpenSSH is to specify options with their default value where
 # possible, but leave them commented.  Uncommented options change a