Allow :Messages to take modifiers

Author: sodapopcan

autoload/scriptease.vim

@@ -318,7 +318,7 @@ endfunction
 
 " Section: :Messages
 
-function! scriptease#messages_command(bang, count, arg) abort
+function! scriptease#messages_command(bang, count, arg, mods) abort
   let command = (a:count > -1 ? a:count : '') . 'messages'
   if !empty(a:arg)
     return command . ' ' . a:arg
@@ -400,7 +400,7 @@ function! scriptease#messages_command(bang, count, arg) abort
   if exists(':chistory')
     call setqflist([], 'r', {'title': ':Messages'})
   endif
-  copen
+  exec a:mods 'copen'
   $
   call search('^[^|]', 'bWc')
   return ''

plugin/scriptease.vim

@@ -57,7 +57,7 @@ exe s:othercmd '-bar -count=0 Scriptnames'
       \ '<count>'
 
 exe s:othercmd '-bar -bang -nargs=? -range=-1 Messages'
-      \ 'exe scriptease#messages_command(<bang>0, <count>, <q-args>)'
+      \ 'exe scriptease#messages_command(<bang>0, <count>, <q-args>, <q-mods>)'
 
 command! -bang -bar -range=-1 -nargs=* -complete=customlist,scriptease#complete Runtime
       \ :exe scriptease#runtime_command('<bang>', <f-args>)