err: provide a traceback if assert hits

Signed-off-by: Tobias Ulmer <tu@emlix.com>

diff --git a/generic/err.lua b/generic/err.lua
index 6b793e3617f07996d00231930c9b4f58cf2b06d0..8738b6d8ecb851919942c75cd3e18a686db55afa 100644 (file)
--- a/generic/err.lua
+++ b/generic/err.lua
@@ -33,7 +33,7 @@ local e2lib = require("e2lib")
 local strict = require("strict")
 
 local function assert_err(e)
-    assert(type(e) == "table", "No error table supplied")
+    assert(type(e) == "table", "No error table supplied: "..debug.traceback())
     assert(type(e.count) == "number", "Error count is not a number")
     assert(type(e.msg) == "table", "Error message table of wrong type")
     return true