`man` replacement for git bash on windows

man.sh

#!/bin/sh

# man.sh - `man` replacement for git bash on windows

if [ $# -eq 0 ] ; then 
    echo "No command specified to get man page for"
    exit 1
fi

url="http://man.he.net/?section=all&topic="

#  The extra `+` at the end of the querystring doesn't hurt 
for arg in $@ ; do
    url=$url$arg"+"
done

curl -s $url | sed -n '/<PRE>/,/<\/PRE>/p' | sed 's/<[^>]*>//g' | perl -MHTML::Entities -pe 'decode_entities($_);' | less

Could you fix this to return non-zero exit status and skip less, if no man entry is found?
I'd like to check the status, but I don't come up with any simple way without outputting into a file.

Mine: https://gist.github.com/KSR-Yasuda/84349d909bb576b9dfde0bc4914e67b3
Dump into a temp file, and check output size to return error code.