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diff --git a/pod/perlrun.pod b/pod/perlrun.pod
index e105b00..d8fb12c 100644
--- a/pod/perlrun.pod
+++ b/pod/perlrun.pod
@@ -284,11 +284,15 @@ be skipped.
 
 runs the program under the Perl debugger.  See L<perldebug>.
 
-=item B<-d:>I<foo>
+=item B<-d:>I<foo[=bar,baz]>
 
 runs the program under the control of a debugging, profiling, or
 tracing module installed as Devel::foo. E.g., B<-d:DProf> executes
-the program using the Devel::DProf profiler.  See L<perldebug>.
+the program using the Devel::DProf profiler.  As with the B<-M>
+flag, options may be passed to the Devel::foo package where they
+will be received and interpreted by the Devel::foo::import routine.
+The comma-separated list of options must follow a C<=> character.
+See L<perldebug>.
 
 =item B<-D>I<letters>
 
@@ -573,7 +577,8 @@ recognized by the C preprocessor such as "if", "else", or "define".)
 
 enables rudimentary switch parsing for switches on the command
 line after the program name but before any filename arguments (or before
-a B<-->).  Any switch found there is removed from @ARGV and sets the
+an argument of B<-->).  This means you can have switches with two leading
+dashes (B<--help>).  Any switch found there is removed from @ARGV and sets the
 corresponding variable in the Perl program.  The following program
 prints "1" if the program is invoked with a B<-xyz> switch, and "abc"
 if it is invoked with B<-xyz=abc>.
@@ -581,6 +586,9 @@ if it is invoked with B<-xyz=abc>.
     #!/usr/bin/perl -s
     if ($xyz) { print "$xyz\n" }
 
+Do note that B<--help> creates the variable ${-help}, which is not compliant
+with C<strict refs>.
+
 =item B<-S>
 
 makes Perl use the PATH environment variable to search for the