fix vale option (#5086)

ale_linters/text/vale.vim

@@ -1,9 +1,22 @@
 " Author: chew-z https://github.com/chew-z
 " Description: vale for text files
 
+call ale#Set('vale_executable', 'vale')
+call ale#Set('vale_options', '')
+
+function! ale_linters#text#vale#GetCommand(buffer) abort
+    let l:executable = ale#Var(a:buffer, 'vale_executable')
+
+    let l:options = ale#Var(a:buffer, 'vale_options')
+
+    return ale#Escape(l:executable)
+    \   . (!empty(l:options) ? ' ' . l:options : '')
+    \   . ' --output=JSON %t'
+endfunction
+
 call ale#linter#Define('text', {
 \   'name': 'vale',
 \   'executable': 'vale',
-\   'command': 'vale --output=JSON %t',
+\   'command': function('ale_linters#text#vale#GetCommand'),
 \   'callback': 'ale#handlers#vale#Handle',
 \})