[gcc r12-7748] print-tree:Avoid warnings of overflow

[Qian Jianhua <qianjh@gcc.gnu.org>]

https://gcc.gnu.org/g:c6bc4835659d24edc2bf5de13bfe8f59ae409ff3

commit r12-7748-gc6bc4835659d24edc2bf5de13bfe8f59ae409ff3
Author: Qian Jianhua <qianjh@cn.fujitsu.com>
Date:   Tue Mar 22 08:44:51 2022 +0800

    print-tree:Avoid warnings of overflow
    
    This patch avoids two warnings of "'sprintf' may write a
    terminating nul past the end of the destination
    [-Wformat-overflow=]" when build GCC.
    
    Tested on x86_64, and committed as obvious.
    
    gcc/ChangeLog:
    
            * print-tree.cc: Change array length

Diff:
---
 gcc/print-tree.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gcc/print-tree.cc b/gcc/print-tree.cc
index 0876da873a9..6d45a4a5966 100644
--- a/gcc/print-tree.cc
+++ b/gcc/print-tree.cc
@@ -776,7 +776,7 @@ print_node (FILE *file, const char *prefix, tree node, int indent,
 	    {
 	      /* Buffer big enough to format a 32-bit UINT_MAX into, plus
 		 the text.  */
-	      char temp[15];
+	      char temp[16];
 
 	      sprintf (temp, "arg:%d", i);
 	      print_node (file, temp, TREE_OPERAND (node, i), indent + 4);
@@ -886,7 +886,7 @@ print_node (FILE *file, const char *prefix, tree node, int indent,
 	      {
 	      /* Buffer big enough to format a 32-bit UINT_MAX into, plus
 		 the text.  */
-		char temp[15];
+		char temp[16];
 		sprintf (temp, "elt:%d", i);
 		print_node (file, temp, TREE_VEC_ELT (node, i), indent + 4);
 	      }