fix stdoutStream access in ledger/key

src/__xtz/deposits_limit.lua

@@ -27,7 +27,7 @@ local _proc = proc.spawn("bin/client", _args, {
 })
 
 log_info("Please confirm adjusting of deposit limits...")
-local _stderr = _proc.stderrStream:read("a")
-ami_assert(_proc.exitcode == 0, "Failed to set/unset deposits limit: " .. (_stderr or ""))
+local _stderr = _proc.stderrStream:read("a") or ""
+ami_assert(_proc.exitcode == 0, "Failed to set/unset deposits limit: " .. _stderr)
 
 log_success("Deposits limit adjusted.")

src/__xtz/ledger/authorize.lua

@@ -47,9 +47,9 @@ local function setup(options)
 		env = { HOME = path.combine(os.cwd(), "data") }
 	})
 
-	local _stderr = _proc.stderrStream:read("a")
+	local _stderr = _proc.stderrStream:read("a") or ""
 	ami_assert(_proc.exitcode == 0 or not _stderr:match("Error:"),
-		"Failed to setup ledger for baking: " .. (_stderr or ""))
+		"Failed to setup ledger for baking: " .. _stderr)
 
 	log_success("Ledger authorized for baking.")
 end

src/__xtz/ledger/key.lua

@@ -26,7 +26,7 @@ local function setup(options)
 		})
 
 		ami_assert(_proc.exitcode == 0, "Failed to get connected ledgers: " .. (_proc.stderrStream:read("a") or "unknown"))
-		local _output = _proc.stdoutStream:read("a")
+		local _output = _proc.stdoutStream:read("a") or ""
 		ledgerId = _output:match("## Ledger `(.-)`")
 		ami_assert(ledgerId, "No connected ledgers found!", EXIT_APP_INTERNAL_ERROR)
 		log_info("Using ledger id: " .. ledgerId)

src/specs.json

@@ -1,6 +1,6 @@
 {
     "id": "xtz.signer",
-    "version" : "0.23.8+20.2",
+    "version" : "0.23.9+20.2",
     "dependencies": [
         { "id":"xtz.base" }
     ]