This patch originates from the Debian project, see https://www.debian.org/

26trailing_tab_segv.dpatch by <hesso@pool.math.tu-berlin.de>


Prevent a segfault if a trailing tab is pushed to a new line by inserting
characters before it if 'set number' is in effect.

--- nvi-1.81.6+debian.orig/vi/vs_relative.c	2007-11-18 17:41:42.000000000 +0100
+++ nvi-1.81.6+debian/vi/vs_relative.c	2008-06-13 03:22:55.000000000 +0200
@@ -133,7 +133,7 @@
 	 * Initialize the pointer into the buffer and current offset.
 	 */
 	p = lp;
-	curoff = 0;
+	curoff = scno;
 
 	/* Macro to return the display length of any signal character. */
 #define	CHLEN(val) (ch = *(UCHAR_T *)p++) == '\t' &&			\