patch for perl.vim to follow pod.vim's instructions

Is this the way to submit updates for problems?

syntax/pod.vim shows how to include pod sections and says to
put the option "contained" in each region defined
in an "including" language.

syntax/perl.vim doesn't do this.

Result -- when I have pod in my perl.vim file, the pod can turn off
syntax highlighting for perl-code that follows. I've put together
a patch that seems to address the problem (?)
Note, I do have "perl_include_pod" set to 1.



This patch adds the "contained" option at the at the end
of the 6 perlPOD regions defined:

--- syntax/perl.vim 2016-10-27 18:55:35.000000000 -0700
+++ syntax/perl.vim 2016-10-27 18:59:03.842586040 -0700
@@ -50,18 +50,18 @@
syn include @Pod syntax/pod.vim
unlet b:current_syntax
if exists("perl_fold")
- syn region perlPOD start="^=[\I]" end="^=cut" contains=@Pod,@Spell,perlTodo keepend fold extend
- syn region perlPOD start="^=cut" end="^=cut" contains=perlTodo keepend fold extend
+ syn region perlPOD start="^=[\I]" end="^=cut" contains=@Pod,@Spell,perlTodo keepend fold extend contained
+ syn region perlPOD start="^=cut" end="^=cut" contains=perlTodo keepend fold extend contained
else
- syn region perlPOD start="^=[\I]" end="^=cut" contains=@Pod,@Spell,perlTodo keepend
- syn region perlPOD start="^=cut" end="^=cut" contains=perlTodo keepend
+ syn region perlPOD start="^=[\I]" end="^=cut" contains=@Pod,@Spell,perlTodo keepend contained
+ syn region perlPOD start="^=cut" end="^=cut" contains=perlTodo keepend contained
endif
else
" Use only the bare minimum of rules
if exists("perl_fold")
- syn region perlPOD start="^=[\I]" end="^=cut" fold
+ syn region perlPOD start="^=[\I]" end="^=cut" fold contained
else
- syn region perlPOD start="^=[\I]" end="^=cut"
+ syn region perlPOD start="^=[\I]" end="^=cut" contained
endif
endif



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