updated for version 7.4.261

Problem:    When updating the window involves a regexp pattern, an interactive
            substitute to replace a "\n" with a line break fails. (Ingo
            Karkat)
Solution:   Set reg_line_lbr in vim_regsub() and vim_regsub_multi().

src/regexp.c

@@ -7381,6 +7381,7 @@ vim_regsub(rmp, source, dest, copy, magic, backslash)
     reg_mmatch = NULL;
     reg_maxline = 0;
     reg_buf = curbuf;
+    reg_line_lbr = TRUE;
     return vim_regsub_both(source, dest, copy, magic, backslash);
 }
 #endif
@@ -7400,6 +7401,7 @@ vim_regsub_multi(rmp, lnum, source, dest, copy, magic, backslash)
     reg_buf = curbuf;		/* always works on the current buffer! */
     reg_firstlnum = lnum;
     reg_maxline = curbuf->b_ml.ml_line_count - lnum;
+    reg_line_lbr = FALSE;
     return vim_regsub_both(source, dest, copy, magic, backslash);
 }
 

src/version.c

@@ -734,6 +734,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    261,
 /**/
     260,
 /**/