make `gotype` return all errors

When using `gotype` without the `-e` option, it will only output the
first 10 errors. When working on a larger package that ofter means taht
those 10 errors are in other files then the one that you are currently
working on which then seems to indicate that there are no errors.

By adding the `-e` flag, all errors will be returned and shown properly
in the file that you are working on.

ale_linters/go/gotype.vim

@@ -6,7 +6,7 @@ function! ale_linters#go#gotype#GetCommand(buffer) abort
         return ''
     endif
 
-    return ale#path#BufferCdString(a:buffer) . ' gotype .'
+    return ale#path#BufferCdString(a:buffer) . ' gotype -e .'
 endfunction
 
 call ale#linter#Define('go', {

test/command_callback/test_gotype_command_callback.vader

@@ -7,7 +7,7 @@ After:
 
 Execute(The default gotype command should be correct):
   AssertLinter 'gotype',
-  \ ale#path#CdString(expand('%:p:h')) . ' gotype .'
+  \ ale#path#CdString(expand('%:p:h')) . ' gotype -e .'
 
 Execute(The gotype callback should ignore test files):
   call ale#test#SetFilename('bla_test.go')