Bug #58608 mysqltestrun --help incongruences

Fixed some errors
Added note about 'no' prefix to options
See also follow-up comment to bug report

mysql-test/mysql-test-run.pl

@@ -863,7 +863,7 @@ sub command_line_setup {
   my $opt_list_options;
 
   # Read the command line options
-  # Note: Keep list, and the order, in sync with usage at end of this file
+  # Note: Keep list in sync with usage at end of this file
   Getopt::Long::Configure("pass_through");
   my %options=(
              # Control what engine/variation to run
@@ -898,6 +898,7 @@ sub command_line_setup {
 	     'combination=s'            => \@opt_combinations,
              'skip-combinations'        => \&collect_option,
              'experimental=s'           => \@opt_experimentals,
+	     # skip-im is deprecated and silently ignored
 	     'skip-im'                  => \&ignore_option,
 
              # Specify ports
@@ -990,6 +991,7 @@ sub command_line_setup {
 	     'max-connections=i'        => \$opt_max_connections,
 
              'help|h'                   => \$opt_usage,
+	     # list-options is internal, not listed in help
 	       'list-options'             => \$opt_list_options,
 	      );
 
@@ -5460,7 +5462,7 @@ Options to control what engine/variation to run
 
   defaults-file=<config template> Use fixed config template for all
                         tests
-  defaults_extra_file=<config template> Extra config template to add to
+  defaults-extra-file=<config template> Extra config template to add to
                         all generated configs
   combination=<opt>     Use at least twice to run tests with specified 
                         options to mysqld
@@ -5550,7 +5552,7 @@ Options for debugging the product
                         test(s)
   manual-ddd            Let user manually start mysqld in ddd, before running
                         test(s)
-  strace-client=[path]  Create strace output for mysqltest client, optionally
+  strace-client[=path]  Create strace output for mysqltest client, optionally
                         specifying name and path to the trace program to use.
                         Example: $0 --strace-client=ktrace
   max-save-core         Limit the number of core files saved (to avoid filling
@@ -5583,7 +5585,7 @@ Options for valgrind
 Misc options
   user=USER             User for connecting to mysqld(default: $opt_user)
   comment=STR           Write STR to the output
-  notimer               Don't show test case execution time
+  timer                 Show test case execution time.
   verbose               More verbose output(use multiple times for even more)
   verbose-restart       Write when and why servers are restarted
   start                 Only initialize and start the servers, using the
@@ -5623,6 +5625,7 @@ Misc options
                         actions. Disable facility with NUM=0.
   gcov                  Collect coverage information after the test.
                         The result is a gcov file per source and header file.
+  gprof                 Collect profiling information using gprof.
   experimental=<file>   Refer to list of tests considered experimental;
                         failures will be marked exp-fail instead of fail.
   report-features       First run a "test" that reports mysql features
@@ -5631,6 +5634,10 @@ Misc options
                         *previous* test started
   max-connections=N     Max number of open connection to server in mysqltest
 
+Some options that control enabling a feature for normal test runs,
+can be turned off by prepending 'no' to the option, e.g. --notimer.
+This applies to reorder, timer, check-testcases and warnings.
+
 HERE
   exit(1);