Update syntax checking

* Line continuation characters should be on the same lines.
* .vim file line indentation should be a multiple of 4.

ale_linters/vhdl/ghdl.vim

@@ -6,7 +6,7 @@ call ale#Set('vhdl_ghdl_executable', 'ghdl')
 call ale#Set('vhdl_ghdl_options', '--std=08')
 
 function! ale_linters#vhdl#ghdl#GetCommand(buffer) abort
-   return '%e -s ' . ale#Pad(ale#Var(a:buffer, 'vhdl_ghdl_options')) . ' %t'
+    return '%e -s ' . ale#Pad(ale#Var(a:buffer, 'vhdl_ghdl_options')) . ' %t'
 endfunction
 
 function! ale_linters#vhdl#ghdl#Handle(buffer, lines) abort

ale_linters/vhdl/vcom.vim

@@ -19,11 +19,11 @@ function! ale_linters#vhdl#vcom#Handle(buffer, lines) abort
     let l:output = []
 
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
-      call add(l:output, {
-      \   'lnum': l:match[2] + 0,
-      \   'type': l:match[1] is? 'Error' ? 'E' : 'W',
-      \   'text': l:match[3],
-      \})
+        call add(l:output, {
+        \   'lnum': l:match[2] + 0,
+        \   'type': l:match[1] is? 'Error' ? 'E' : 'W',
+        \   'text': l:match[3],
+        \})
     endfor
 
     return l:output

ale_linters/vhdl/xvhdl.vim

@@ -18,11 +18,11 @@ function! ale_linters#vhdl#xvhdl#Handle(buffer, lines) abort
 
     " NOTE: `xvhdl` only prints 'INFO' and 'ERROR' messages
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
-      call add(l:output, {
-      \   'lnum': l:match[2] + 0,
-      \   'type': 'E',
-      \   'text': l:match[1],
-      \})
+        call add(l:output, {
+        \   'lnum': l:match[2] + 0,
+        \   'type': 'E',
+        \   'text': l:match[1],
+        \})
     endfor
 
     return l:output