scripts/get_abi.pl: Ignore hidden files

get_abi.pl currently collects every file in Documentation/ABI. This
causes a UnicodeDecodeError in Documentation/sphinx/kernel_abi.py,
when it finds my Vim swap files (.foo.swp) in the directory.

To avoid such issues, ignore hidden files in get_abi.pl.
Reviewed-by: NMauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: NJonathan Neuschäfer <j.neuschaefer@gmx.net>
Link: https://lore.kernel.org/r/20220129005019.2090996-1-j.neuschaefer@gmx.netSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

scripts/get_abi.pl

@@ -92,6 +92,7 @@ sub parse_abi {
 	my $mode = (stat($file))[2];
 	return if ($mode & S_IFDIR);
 	return if ($file =~ m,/README,);
+	return if ($file =~ m,/\.,);
 
 	my $name = $file;
 	$name =~ s,.*/,,;