Some deprecated warnings were also in the syntax category

(one of them was spotted by Abigail.)
Plus, document the undocumented warning
"Use of comma-less variable list is deprecated"

p4raw-id: //depot/perl@34825

1 files changed, 9 insertions, 4 deletions

diff --git a/pod/perldiag.pod b/pod/perldiag.pod
index 14f1368af7..9d4d3c1317 100644
--- a/pod/perldiag.pod
+++ b/pod/perldiag.pod
@@ -4677,8 +4677,13 @@ returns no useful value.  See L<perlmod>.
 
 =item Use of bare << to mean <<"" is deprecated
 
-(D deprecated) You are now encouraged to use the explicitly quoted form
-if you wish to use an empty line as the terminator of the here-document.
+(D deprecated, W syntax) You are now encouraged to use the explicitly quoted
+form if you wish to use an empty line as the terminator of the here-document.
+
+=item Use of comma-less variable list is deprecated
+
+(D deprecated, W syntax) The values you give to a format should be
+separated by commas, not just aligned on a line.
 
 =item Use of chdir('') or chdir(undef) as chdir() deprecated
 
@@ -4727,8 +4732,8 @@ repeatedly, the C</g> has no effect.
 
 =item Use of implicit split to @_ is deprecated
 
-(D deprecated) It makes a lot of work for the compiler when you clobber
-a subroutine's argument list, so it's better if you assign the results
+(D deprecated, W syntax) It makes a lot of work for the compiler when you
+clobber a subroutine's argument list, so it's better if you assign the results
 of a split() explicitly to an array (or list).
 
 =item Use of inherited AUTOLOAD for non-method %s() is deprecated