Remove an extra space after '+' characters

[dbaio]

Summary

This is happening only on documentation/, basically in all places that
attaches a block or a paragraph to a list [1].

Although this is working, it impacts our translation tool po4a, the '+'
character is a difficult part when processing asciidoc[tor] files.

1 - https://docs.asciidoctor.org/asciidoc/latest/lists/continuation/#list-continuation

Test Plan

Tests can be seen here.

[carlavilla]

Really good catch!
Go ahead!