Add plugins/sudoers/regress/testsudoers/passwd to MANIFEST.

Author: millert

MANIFEST

@@ -1053,6 +1053,7 @@ plugins/sudoers/regress/sudoers/test9.ldif.ok
 plugins/sudoers/regress/sudoers/test9.out.ok
 plugins/sudoers/regress/sudoers/test9.toke.ok
 plugins/sudoers/regress/testsudoers/group
+plugins/sudoers/regress/testsudoers/passwd
 plugins/sudoers/regress/testsudoers/test1.out.ok
 plugins/sudoers/regress/testsudoers/test1.sh
 plugins/sudoers/regress/testsudoers/test10.out.ok