[PATCH] checkpatch.pl: warn against using %Z

[Alexey Dobriyan]

%Z is going to be removed in favour of %z.

Signed-off-by: Alexey Dobriyan <adobri...@gmail.com>
---

 scripts/checkpatch.pl |    6 ++++++
 1 file changed, 6 insertions(+)

--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -5189,6 +5189,12 @@ sub process {
                                     "\%Ld/%Lu are not-standard C, use 
%lld/%llu\n" . $herecurr);
                                last;
                        }
+                       # check for %Z
+                       if ($string =~ /(?<!%)%[\*\d\.\$]*Z[diouxX]/) {
+                               WARN("PRINTF_Z",
+                                    "%Z is non-standard C, use %z\n" . 
$herecurr);
+                               last;
+                       }
                        if ($string =~ /0x%[\*\d\.\$\Llzth]*[udi]/) {
                                ERROR("PRINTF_0xDECIMAL",
                                      "Prefixing 0x with decimal output is 
defective\n" . $herecurr);