--- a/gcc/gcov-tool.c	Thu Oct 25 07:37:49 2018 +0900
+++ b/gcc/gcov-tool.c	Thu Feb 13 11:34:05 2020 +0900
@@ -1,5 +1,5 @@
 /* Gcc offline profile processing tool support. */
-/* Copyright (C) 2014-2018 Free Software Foundation, Inc.
+/* Copyright (C) 2014-2020 Free Software Foundation, Inc.
    Contributed by Rong Xu <xur@google.com>.
 
 This file is part of GCC.
@@ -70,7 +70,7 @@
     ret = remove (name);
 
   if (ret)
-    fatal_error (input_location, "error in removing %s\n", name);
+    fatal_error (input_location, "error in removing %s", name);
 
   return ret;
 }
@@ -188,7 +188,7 @@
 
 /* Print merge usage and exit.  */
 
-static void
+static void ATTRIBUTE_NORETURN
 merge_usage (void)
 {
   fnotice (stderr, "Merge subcomand usage:");
@@ -220,7 +220,7 @@
         case 'w':
           sscanf (optarg, "%d,%d", &w1, &w2);
           if (w1 < 0 || w2 < 0)
-            fatal_error (input_location, "weights need to be non-negative\n");
+	    fatal_error (input_location, "weights need to be non-negative");
           break;
         default:
           merge_usage ();
@@ -284,7 +284,7 @@
 
 /* Print profile rewrite usage and exit.  */
 
-static void
+static void ATTRIBUTE_NORETURN
 rewrite_usage (void)
 {
   fnotice (stderr, "Rewrite subcommand usage:");
@@ -355,7 +355,7 @@
             }
 
           if (scale < 0.0)
-            fatal_error (input_location, "scale needs to be non-negative\n");
+	    fatal_error (input_location, "scale needs to be non-negative");
 
           if (normalize_val != 0)
             {
@@ -525,7 +525,7 @@
 print_version (void)
 {
   fnotice (stdout, "%s %s%s\n", progname, pkgversion_string, version_string);
-  fnotice (stdout, "Copyright %s 2018 Free Software Foundation, Inc.\n",
+  fnotice (stdout, "Copyright %s 2020 Free Software Foundation, Inc.\n",
            _("(C)"));
   fnotice (stdout,
            _("This is free software; see the source for copying conditions.\n"