When emerge sys-apps/man-pages with nls USE enabled, it will pull in app-i18n/man-pages-zh_CN. After that, emerge --depclean will unmerge app-i18n/man-pages-zh_CN.
Steps to Reproduce:
1. USE=nls emerge -1 =sys-apps/man-pages-2.76
2. emerge --depclean
>>> These are the packages that would be unmerged:
shouldn't do that
when man-pages bumps, it will pull in man-pages-zh_CN again in vain
*** This bug has been marked as a duplicate of bug 136953 ***