diff --git a/.luacheckrc b/.luacheckrc
index 670c843258..3829c33024 100644
--- a/.luacheckrc
+++ b/.luacheckrc
@@ -22,7 +22,7 @@ read_globals = {
 	"ValueNoise", "ValueNoiseMap",
 
 	string = {fields = {"split", "trim"}},
-	table  = {fields = {"copy", "copy_with_metatables", "getn", "indexof", "keyof", "insert_all"}},
+	table  = {fields = {"copy", "copy_with_metatables", "getn", "indexof", "keyof", "insert_all","shuffle"}},
 	math   = {fields = {"hypot", "round"}},
 }
 
diff --git a/builtin/common/misc_helpers.lua b/builtin/common/misc_helpers.lua
index e28a10d940..e698a6a416 100644
--- a/builtin/common/misc_helpers.lua
+++ b/builtin/common/misc_helpers.lua
@@ -120,10 +120,7 @@ end
 function dump(value, indent)
 	indent = indent or "\t"
 
-	assert(
-		type(indent) == "string",
-		"dump()'s second argument should be a string or nil, to dump multiple things use dump({a, b})."
-	)
+	assert(type(indent) == "string", "dump()'s second argument should be a string or nil.")
 
 	local newline = indent == "" and "" or "\n"
 
diff --git a/doc/lua_api.md b/doc/lua_api.md
index aee3552b7a..2bbeb879f4 100644
--- a/doc/lua_api.md
+++ b/doc/lua_api.md
@@ -4317,10 +4317,6 @@ Helper functions
     * `tool_capabilities`: Tool capabilities table of the item
     * `time_from_last_punch`: time in seconds since last punch action
     * `wear`: Amount of wear the item starts with (default: 0)
-* `core.file_exists(path)`
-    * Returns true if a file exists
-    * Use if you only want to check if a file exists, don't use to check if you can open it (example: you can check if a schematic exists before loading it)
-