Update some comments.

drivers/timers/Kconfig

@@ -165,7 +165,7 @@ choice
 config RTC_DS1302
 	bool "DS1302"
 	---help---
-		Enables support for the Maxim Integrated DS1307 serial RTC timer.
+		Enables support for the Maxim Integrated DS1302 serial RTC timer.
 
 config RTC_DS1307
 	bool "DS1307"

include/nuttx/timers/ds3231.h

@@ -64,7 +64,7 @@ extern "C"
  *   called once during the OS initialization sequence by board-specific logic.
  *
  *   After dsxxxx_rtc_initialize() is called, the OS function clock_synchronize()
- *   should also be called to synchronize the system timer to a hardware RTC.  That
+ *   should also be called to synchronize the system timer to the hardware RTC.  That
  *   operation is normally performed automatically by the system during clock
  *   initialization.  However, when an external RTC is used, the board logic will
  *   need to explicitly re-synchronize the system timer to the RTC when the RTC

libs/libc/unistd/lib_daemon.c

@@ -93,6 +93,10 @@
  *    and that the fork was successful and that we are the child of the
  *    fork.
  *
+ *    REVISIT:  Ideally we should remove the parent information from the
+ *    the new daemon's group data structure.  That would have a similar
+ *    effect to the above fork() operation.
+ *
  * Input Parameters:
  *   nochdir - If nochdir is zero, daemon() changes the process's current
  *     working directory to the root directory ("/"); otherwise, the current