Fallback plugins not working

[mitermayer]

In

function! s:Get_Exec(...) abort`
   let l:rootDir = a:0 > 0 ? a:1 : 0 
   let l:exec = 0
 
   if rootDir

should check for directory since vim string comparison is always 0, intead it should be:

function! s:Get_Exec(...) abort`
   let l:rootDir = a:0 > 0 ? a:1 : 0 
   let l:exec = 0
 
   if isdirectory(rootDir)