[LyX/2.2.x] Revert unintended part of commit that was causing changed output.

[Richard Heck]

commit f3fcf18e96e96b72ab3e69ab49b12d301481065f
Author: Richard Heck <rgh...@lyx.org>
Date:   Mon May 29 18:25:26 2017 -0400

    Revert unintended part of commit that was causing changed output.
---
 src/output_latex.cpp |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/output_latex.cpp b/src/output_latex.cpp
index cdce62a..d137274 100644
--- a/src/output_latex.cpp
+++ b/src/output_latex.cpp
@@ -1134,7 +1134,7 @@ void TeXOnePar(Buffer const & buf,
                        // prevent unwanted whitespace
                        os << '%';
                if (!os.afterParbreak() && !last_was_separator)
-                       os << breakln;
+                       os << '\n';
        }
 
        // if this is a CJK-paragraph and the next isn't, close CJK