Fish: test: Expected a combining operator like '-a'

[er2]

find-the-command: "xjc" is not found locally, searching in repositories...

"xjc" may be found in the following packages:

test: Expected a combining operator like '-a' at index 3
-n extra/jdk8-openjdk and sudo pacman -S extra/jdk8-openjdk or return 127
                      ^
/usr/share/doc/find-the-command/ftc.fish (line 129): 
                test -n "$package" and "$__cnf_asroot" pacman -S "$package" or return 127
                ^
in function 'fish_command_not_found' with arguments 'xjc'
in event handler: handler for generic event “fish_command_not_found”

fish, version 3.4.1