If I have text like this, it interprets the gap as needing a paragraph break:

This is some text.

This is some other text, it will appear in a new paragraph.

Is there any macro I can place that will ignore the gap before it, treating the next text as if it belongs at the end of that sentence?

Ex.

This is some text.

\ignorebreak This is some other text, it will appear in a new paragraph.

That way output is more like this:

This is some text. This is some other text, it will appear in a new paragraph.

--Joel