/usr/share/kservices5/searchproviders/uman.desktop is in kubuntu-web-shortcuts 17.04ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 | [Desktop Entry]
Hidden=false
Keys=uman,manpages,umanpages
Name=Ubuntu Manuals
Query=http://manpages.ubuntu.com/cgi-bin/search.py?q=\\{@}
ServiceTypes=SearchProvider
Type=Service
|