[binutils-gdb] [gdb/testsuite] Fix isort and flake8 errors from recent commit

[Tom de Vries]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=2eba2726b3f57be086bca44c5694b9faf9396cef

commit 2eba2726b3f57be086bca44c5694b9faf9396cef
Author: Tom de Vries <tdevries@suse.de>
Date:   Wed Feb 4 16:00:52 2026 +0100

    [gdb/testsuite] Fix isort and flake8 errors from recent commit
    
    A recent commit introduced some isort and flake8 errors.  Fix these.
    
    Tested on x86_64-linux.

Diff:
---
 gdb/testsuite/gdb.base/corefile-no-threads.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/gdb/testsuite/gdb.base/corefile-no-threads.py b/gdb/testsuite/gdb.base/corefile-no-threads.py
index ad53de2ffdb..5ba82ae9486 100644
--- a/gdb/testsuite/gdb.base/corefile-no-threads.py
+++ b/gdb/testsuite/gdb.base/corefile-no-threads.py
@@ -30,10 +30,11 @@
 # If <name regex> is missing, or is the empty string, then any note
 # with the required type will be modified.
 
-import sys
-import struct
 import os
 import re
+import struct
+
+import gdb
 
 # Constants taken from the ELF spec.
 ELF_CLASS_32 = 0x1