profile2linkerlist: fix perl warnings

Turn on strict checking.
Simplify code by using "unless" statement.

Signed-off-by: Stephen Hemminger <[e-mail]>
Acked-by: WANG Cong <[e-mail]>
Cc: Michal Marek <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Michal Marek <[e-mail]>

scripts/profile2linkerlist.pl

···
 # usage:
 #	 readprofile | sort -rn | perl profile2linkerlist.pl > functionlist
 #
+use strict;
 
 while (<>) {
   my $line = $_;
 
   $_ =~ /\W*[0-9]+\W*([a-zA-Z\_0-9]+)\W*[0-9]+/;
 
-  if ( ($line =~ /unknown/) || ($line =~ /total/)) {
-
-  } else {
-    print "*(.text.$1)\n";
-  }
+  print "*(.text.$1)\n"
+      unless ($line =~ /unknown/) || ($line =~ /total/);
 }