Minor output format change of the Perl test suite script (align with the shell script).

mysql-test/lib/mtr_report.pl:
  Make the Perl test script output identical to that of the (old) shell script,
  so that reported differences compare as equal strings (for automatic analysis).

mysql-test/lib/mtr_report.pl

@@ -74,7 +74,7 @@ sub mtr_show_failed_diff ($) {
 sub mtr_report_test_name ($) {
   my $tinfo= shift;
 
-  printf "%-31s ", $tinfo->{'name'};
+  printf "%-30s ", $tinfo->{'name'};
 }
 
 sub mtr_report_test_skipped ($) {
@@ -122,13 +122,13 @@ sub mtr_report_test_failed ($) {
   # we should write out into $::path_timefile when the error occurs.
   if ( -f $::path_timefile )
   {
-    print "Errors are (from $::path_timefile) :\n";
+    print "\nErrors are (from $::path_timefile) :\n";
     print mtr_fromfile($::path_timefile); # FIXME print_file() instead
     print "\n(the last lines may be the most important ones)\n";
   }
   else
   {
-    print "Unexpected termination, probably when starting mysqld\n";
+    print "\nUnexpected termination, probably when starting mysqld\n";
   }
 }