/usr/share/help/zh_HK/ is in gcalctool 6.4.1.1-0ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/help/zh_HK/gcalctool/
/usr/share/help/zh_HK/gcalctool/absolute.page
/usr/share/help/zh_HK/gcalctool/base.page
/usr/share/help/zh_HK/gcalctool/boolean.page
/usr/share/help/zh_HK/gcalctool/complex.page
/usr/share/help/zh_HK/gcalctool/conv-base.page
/usr/share/help/zh_HK/gcalctool/conv-character.page
/usr/share/help/zh_HK/gcalctool/conv-currency.page
/usr/share/help/zh_HK/gcalctool/conv-length.page
/usr/share/help/zh_HK/gcalctool/conv-time.page
/usr/share/help/zh_HK/gcalctool/conv-weight.page
/usr/share/help/zh_HK/gcalctool/equation.page
/usr/share/help/zh_HK/gcalctool/factorial.page
/usr/share/help/zh_HK/gcalctool/factorize.page
/usr/share/help/zh_HK/gcalctool/financial.page
/usr/share/help/zh_HK/gcalctool/functions.page
/usr/share/help/zh_HK/gcalctool/index.page
/usr/share/help/zh_HK/gcalctool/keyboard.page
/usr/share/help/zh_HK/gcalctool/legal.xml
/usr/share/help/zh_HK/gcalctool/logarithm.page
/usr/share/help/zh_HK/gcalctool/modulus.page
/usr/share/help/zh_HK/gcalctool/mouse.page
/usr/share/help/zh_HK/gcalctool/number-display.page
/usr/share/help/zh_HK/gcalctool/percentage.page
/usr/share/help/zh_HK/gcalctool/power.page
/usr/share/help/zh_HK/gcalctool/scientific.page
/usr/share/help/zh_HK/gcalctool/superscript.page
/usr/share/help/zh_HK/gcalctool/trigonometry.page
/usr/share/help/zh_HK/gcalctool/variables.page