[gnome-subtitles] Fix Bug #659524 - Incorrect character count in subtitle edit, with a patch from Keith

[Pedro Daniel da Rocha Melo e Castro <pcastro src gnome org>]

commit 61586cc18d2567a536b47bef8d763b99eff7af7b
Author: Pedro Castro <pedro gnomesubtitles org>
Date:   Sun Apr 1 22:08:17 2012 +0100

    Fix Bug #659524 - Incorrect character count in subtitle edit, with a patch from Keith

 .../Ui/Edit/SubtitleEditTextViewMargin.cs          |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/GnomeSubtitles/Ui/Edit/SubtitleEditTextViewMargin.cs b/src/GnomeSubtitles/Ui/Edit/SubtitleEditTextViewMargin.cs
index af067a8..df1655b 100644
--- a/src/GnomeSubtitles/Ui/Edit/SubtitleEditTextViewMargin.cs
+++ b/src/GnomeSubtitles/Ui/Edit/SubtitleEditTextViewMargin.cs
@@ -117,7 +117,7 @@ public class SubtitleEditTextViewMargin {
     	}
     	
     	/* Process end iter */
-    	int endLineCharCount = endIter.CharsInLine; //don't subtract newline because it's the last line
+    	int endLineCharCount = endIter.CharsInLine - (endLine == textView.Buffer.LineCount - 1 ? 0 : 1); //subtract newline if this isn't the last line in the buffer
     	info[lineCount-1, 0] = endLineCharCount;
     	Gdk.Rectangle endIterLocation = textView.GetIterLocation(endIter);
     	info[lineCount-1, 1] = endIterLocation.Bottom - (endIterLocation.Height/2) - minVisibleY; //Y