From 7598fdfff238e02d41706e6f264243dae3f54fcd Mon Sep 17 00:00:00 2001
From: Geoff McLane <ubuntu@geoffair.info>
Date: Sun, 3 Apr 2016 17:54:46 +0200
Subject: [PATCH] avoid DEBUG duplicate newline

---
 src/fileio.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/fileio.c b/src/fileio.c
index f2e11e7..31c4d5b 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -87,7 +87,16 @@ void TIDY_CALL TY_(filesink_putByte)( void* sinkData, byte bv )
   fputc( bv, fout );
 #if !defined(NDEBUG) && defined(_MSC_VER)
   if (_fileno(fout) != 2)
-    SPRTF("%c",bv);
+  {
+      if (bv != 0x0d)
+      {
+          /*\
+           * avoid duplicate newline - SPRTF will translate an 0x0d to CRLF,
+           *  and do the same with the following 0x0a
+          \*/
+          SPRTF("%c",bv);
+      }
+  }
 #endif
 }