lua: more fix mix of spaces & tabs

client/lualibs/hf_reader.lua

@@ -1,7 +1,7 @@
 --[[
-THIS IS WORK IN PROGREESS, very much not finished. 
+THIS IS WORK IN PROGREESS, very much not finished.
 
-This library utilises other libraries under the hood, but can be used as a generic reader for 13.56MHz tags. 
+This library utilises other libraries under the hood, but can be used as a generic reader for 13.56MHz tags.
 ]]
 
 local reader14443A = require('read14a')
@@ -10,26 +10,26 @@ local reader15693 = require('read15')
 
 ---
 -- This method library can be set waits or a 13.56 MHz tag, and when one is found, returns info about
--- what tag it is. 
--- 
+-- what tag it is.
+--
 -- @return if successfull: an table containing card info
 -- @return if unsuccessfull : nil, error
 local function waitForTag()
-	print("Waiting for card... press any key to quit")
-	local readers = {reader14443A, reader14443B, reader15693}
-	local i = 0;
-	while not core.ukbhit() do
-		i = (i % 3) +1
-		r = readers[i]
-		print("Reading with ",i)
-		res, err = r.read()
-		if res then return res end
-		print(err)
-			-- err means that there was no response from card
-	end
-	return nil, "Aborted by user"
+    print("Waiting for card... press any key to quit")
+    local readers = {reader14443A, reader14443B, reader15693}
+    local i = 0;
+    while not core.ukbhit() do
+        i = (i % 3) +1
+        r = readers[i]
+        print("Reading with ",i)
+        res, err = r.read()
+        if res then return res end
+        print(err)
+            -- err means that there was no response from card
+    end
+    return nil, "Aborted by user"
 end
 
 return {
-	waitForTag = waitForTag,
+    waitForTag = waitForTag,
 }