Fix command injection vulnerability

Author: Napsty

check_smart.pl

@@ -158,13 +158,13 @@
         }
 
         foreach my $opt_dl (@dev){
-            warn "Found $opt_dl\n" if $opt_debug;
+            warn "(debug) Found $opt_dl\n" if $opt_debug;
             if (-l $opt_dl) {
-                warn "$opt_dl is a symlink, skipping for security reasons\n\n" if $opt_debug;
+                warn "(debug) $opt_dl is a symlink, skipping for security reasons\n" if $opt_debug;
             } elsif (-b $opt_dl || -c $opt_dl || $opt_dl =~ m/^\/dev\/bus\/\d$/) {
                 $device .= $opt_dl."|";
             } else {
-                warn "$opt_dl is not a valid block/character special device!\n\n" if $opt_debug;
+                warn "(debug) $opt_dl is not a valid block/character special device!\n\n" if $opt_debug;
             }
         }