Reading column number on credo errors

Author: kelvinst

compiler/credo.vim

@@ -7,5 +7,5 @@ if exists(":CompilerSet") != 2
     command -nargs=* CompilerSet setlocal <args>
 endif
 
-CompilerSet errorformat=%f:%l:\ %t:\ %m
+CompilerSet errorformat=%f:%l:%c:\ %t:\ %m,%f:%l:\ %t:\ %m
 CompilerSet makeprg=mix\ credo\ suggest\ --format=flycheck