Correct path to original author info.

--- a/doc/pmvarrun.8
+++ b/doc/pmvarrun.8
@@ -55,5 +55,5 @@ This manpage was originally written by Bastian Kleineidam
 <calvin@debian.org> for the Debian distribution of libpam\-mount but
 may be used by others.
 .PP
-See /usr/share/doc/packages/pam_mount/AUTHORS for the list of original authors
+See /usr/share/doc/libpam\-mount\-bin/copyright for the list of original authors
 of pam_mount.
