Fixed readLine() getting stuck at the end of the file.

source/mijin/io/stream.cpp

@@ -240,7 +240,7 @@ StreamError Stream::readLine(std::string& outString)
 
     outString.clear();
     bool done = false;
-    while(!done)
+    while (!done)
     {
         // read into the buffer
         std::size_t bytesRead = 0;
@@ -270,6 +270,11 @@ StreamError Stream::readLine(std::string& outString)
         {
             return error;
         }
+
+        if (isAtEnd())
+        {
+            done = true;
+        }
     }
 
     return StreamError::SUCCESS;