add better logging to modules

lua/dep/modules/module.lua

@@ -1,3 +1,4 @@
+local logger = require('dep.log')
 local spec_man = require("dep.spec")
 local packager = require("dep.package")
 
@@ -36,6 +37,7 @@ function module:new(modpath, prefix, overrides)
     o.name = modpath
     ok, o.mod = pcall(require, o.path)
     if not ok then
+      logger:log("error", "failed to load module: %s", vim.inspect(o.mod))
       return false
     end
   end
@@ -49,7 +51,8 @@ function module:new(modpath, prefix, overrides)
 
   ok, err = pcall(packager.register_speclist, o.mod, overrides)
   if not ok then
-    error(string.format("%s <- %s", err, o.name))
+    logger:log("error", "%s <- %s", err, o.name)
+    return false
   end
 
   return self