Z:gnu-man-db-manpages--f4742d-Normally, when output is not b/en

Normally, when output is not being directed to a terminal (such as to a file or a pipe), formatting characters are discarded to make it easier to read the result without special tools. However, if $B is set to any non-empty value, these formatting characters are retained. This may be useful for wrappers around B<%man%> that can interpret formatting characters.