man/sv/Makefile.am, man/pl/Makefile.am, man/zh_CN/Makefile.am,
man/it/Makefile.am, man/Makefile.am: Include man_nopam in
EXTRA_DIST only when USE_PAM (they are already in man_MANS
otherwise).
Makefile.
* man/Makefile.am: Build zh_CN pages.
* man/generate_translations.mak: Add config.xml to CLEANFILES.
* man/po/zh_CN.po: limits, groups, faillog, expiry should not be
translated (command name, file name), also this broke the build
system as they are used to derive manpage names.