Bug#987197: apropos(1) says "unknown subject"

[積丹尼 Dan Jacobson]

Package: libunicode-map-perl
Version: 0.112-12+b3
Severity: minor
File: /usr/share/man/man3/Unicode::Map.3pm.gz

apropos(1) says "unknown subject":

$ apropos Unicode::Map
I18N::Charset (3pm)  - IANA Character Set Registry names and Unicode::MapUTF8 (et al.) conversion scheme names
Unicode::Map (3pm)   - (unknown subject)
Unicode::Map8 (3pm)  - Mapping table between 8-bit chars and Unicode
Unicode::MapUTF8 (3pm) - Conversions to and from arbitrary character sets and UTF8