remove trailing comma too, even though I don't think it does any harm

tests/runtests.pl

@@ -374,7 +374,7 @@ sub startnew {
 sub checkcmd {
     my ($cmd)=@_;
     my @paths=(split(":", $ENV{'PATH'}), "/usr/sbin", "/usr/local/sbin",
-               "/sbin", "/usr/bin", "/usr/local/bin", );
+               "/sbin", "/usr/bin", "/usr/local/bin" );
     for(@paths) {
         if( -x "$_/$cmd") {
             return "$_/$cmd";