bug#24373: “man” cannot find “iconv”

[Ricardo Wurmus]

Some man pages cannot be rendered:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
rekado in dev: LANG=en_US.utf8 man borg
man: can't execute iconv: No such file or directory
man: command exited with status 127: iconv -c -f ISO-8859-1 -t UTF-8//TRANSLIT 
| sed -e '/^[[:space:]]*$/{ N; /^[[:space:]]*\n[[:space:]]*$/D; }' | (cd <fd 3> 
&& LESS=-ix8RmPm Manual page borg(1) ?ltline %lt?L/%L.:byte %bB?s/%s..?e 
(END):?pB %pB\%.. (press h for help or q to quit)$PM Manual page borg(1) 
?ltline %lt?L/%L.:byte %bB?s/%s..?e (END):?pB %pB\%.. (press h for help or q to 
quit)$ MAN_PN=borg(1) cat)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Things are fine when changing LANG to ISO-8895-1.
“iconv” is not in my PATH.

“man” is “/run/current-system/profile/bin/man” and that’s
“/gnu/store/7bf5c38dncykgx09m006s3cgh2lm1588-man-db-2.7.5/bin/man”.

~~ Ricardo