Add 'relativenumber' patch from Markus Heidelberg.
diff --git a/src/normal.c b/src/normal.c
index a19771b..e02c817 100644
--- a/src/normal.c
+++ b/src/normal.c
@@ -7845,8 +7845,9 @@
 	}
 	else
 	    i = curwin->w_leftcol;
-	/* Go to the middle of the screen line.  When 'number' is on and lines
-	 * are wrapping the middle can be more to the left. */
+	/* Go to the middle of the screen line.  When 'number' or
+	 * 'relativenumber' is on and lines are wrapping the middle can be more
+	 * to the left. */
 	if (cap->nchar == 'm')
 	    i += (W_WIDTH(curwin) - curwin_col_off()
 		    + ((curwin->w_p_wrap && i > 0)