perl files: clean up warnings

Clean up some perl warnings, some of which were legitimate (apparently
undef doesn't actually take a list of arguments, a common enough
mistake that it is mentioned in the man page!, and a list of variables
after "my" can be cantankerous), and some of which were nuisance but
were easy enough to clean up.

Maybe this can resolve the problems with very old version of Perl?

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/tools/mkdep.pl b/tools/mkdep.pl
index 8c89f39a..1966660d 100755
--- a/tools/mkdep.pl
+++ b/tools/mkdep.pl
@@ -49,7 +49,7 @@ use Fcntl;
 $barrier = "#-- Everything below is generated by mkdep.pl - do not edit --#\n";
 
 # This converts from filenames to full pathnames for our dependencies
-%dep_path = {};
+%dep_path = ();
 
 # List of files that cannot be found; these *must* be excluded
 @must_exclude = ();
@@ -134,7 +134,7 @@ sub _insert_deps($$) {
     open(my $in, '<', $file)
 	or die "$0: Cannot open input: $file\n";
 
-    my $line, $parm, $val;
+    my ($line, $parm, $val);
     my $obj = '.o';		# Defaults
     my $sep = '/';
     my $cont = "\\";