[PATCH] devtools: fix awk regular expression

[Stephen Hemminger]

On Sun, 19 Oct 2025 09:05:11 -0700
Stephen Hemminger <stephen at networkplumber.org> wrote:

> The latest version of awk (in Debian testing) will give a warning
> about invalid regular expression error.
> 
> 	awk: line 6: regular expression compile failed (syntax error ^* or ^+)
> 	^+++ b/
> 
> Fix by using additional backslash escape.
> 
> Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>

This bug is impacting running checkpatch on next-net staging