[gcc r14-6956] contrib: Add script name to usage error in gen_wcwidth.py

[Jonathan Wakely]

https://gcc.gnu.org/g:1bc9eddb801b9d052bde22bf9381d0b385b10e96

commit r14-6956-g1bc9eddb801b9d052bde22bf9381d0b385b10e96
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Thu Jan 4 14:05:20 2024 +0000

    contrib: Add script name to usage error in gen_wcwidth.py
    
    contrib/ChangeLog:
    
            * unicode/gen_wcwidth.py: Add sys.argv[0] to usage error.

Diff:
---
 contrib/unicode/gen_wcwidth.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/contrib/unicode/gen_wcwidth.py b/contrib/unicode/gen_wcwidth.py
index 02b28bcedcf..aa8d8b2cfd2 100755
--- a/contrib/unicode/gen_wcwidth.py
+++ b/contrib/unicode/gen_wcwidth.py
@@ -22,7 +22,7 @@ import sys
 import os
 
 if len(sys.argv) != 2:
-    print("usage: %s <unicode version>", file=sys.stderr)
+    print("usage: %s <unicode version>" % sys.argv[0], file=sys.stderr)
     sys.exit(1)
 unicode_version = sys.argv[1]