Update comments, fixes #21

examples/CardInfo/CardInfo.ino

  // Open serial communications and wait for port to open:
   Serial.begin(9600);
    while (!Serial) {
-    ; // wait for serial port to connect. Needed for Leonardo only
+    ; // wait for serial port to connect.
   }
 
 

examples/Datalogger/Datalogger.ino

  // Open serial communications and wait for port to open:
   Serial.begin(9600);
    while (!Serial) {
-    ; // wait for serial port to connect. Needed for Leonardo only
+    ; // wait for serial port to connect.
   }
 
 
     }
   }
 
-  // open the file. note that only one file can be open at a time,
-  // so you have to close this one before opening another.
+  // open the file.
   File dataFile = SD.open("datalog.txt", FILE_WRITE);
 
   // if the file is available, write to it:

examples/DumpFile/DumpFile.ino

  // Open serial communications and wait for port to open:
   Serial.begin(9600);
    while (!Serial) {
-    ; // wait for serial port to connect. Needed for Leonardo only
+    ; // wait for serial port to connect.
   }
 
 
   }
   Serial.println("card initialized.");
   
-  // open the file. note that only one file can be open at a time,
-  // so you have to close this one before opening another.
+  // open the file.
   File dataFile = SD.open("datalog.txt");
 
   // if the file is available, write to it:

examples/Files/Files.ino

  // Open serial communications and wait for port to open:
   Serial.begin(9600);
    while (!Serial) {
-    ; // wait for serial port to connect. Needed for Leonardo only
+    ; // wait for serial port to connect.
   }
 
 

examples/ReadWrite/ReadWrite.ino

  // Open serial communications and wait for port to open:
   Serial.begin(9600);
    while (!Serial) {
-    ; // wait for serial port to connect. Needed for Leonardo only
+    ; // wait for serial port to connect.
   }
 
 

examples/listfiles/listfiles.ino

   // Open serial communications and wait for port to open:
   Serial.begin(9600);
    while (!Serial) {
-    ; // wait for serial port to connect. Needed for Leonardo only
+    ; // wait for serial port to connect.
   }