doxygen: cleanup code for group_thread_management

The cleanup involved three parts:

- Merging the standalone "/**@{*/" into
  "@addtogroup group_thread_management"

- Changing "/**@}*/" to "/** @} group_thread_management */",
  adding the group name makes it easier to find the matching "@{" part.

- Deleting the "@addtogroup" directive in "include/rtthread.h"
  because this header file doesn't have doxygen comments.
  All doxygen comments for function bodies are defined in other .c files.

  Note, we remian two doxygen comments for rt_thread_inited_hookproto_t
  and rt_thread_idle_sethook in the "include/rtthread.h".
  rt_thread_inited_hookproto_t is really defined here.
  For rt_thread_idle_sethook, please see FIXME comment for reason.

Signed-off-by: Chen Wang <[email protected]>

1 files changed, 2 insertions, 3 deletions

diff --git a/include/rtdef.h b/include/rtdef.h
index a3d06dba8a..a9a7bd0666 100644
--- a/include/rtdef.h
+++ b/include/rtdef.h
@@ -591,10 +591,9 @@ typedef void (*rt_sighandler_t)(int signo);
 
 /**
  * @addtogroup group_thread_management
+ * @{
  */
 
-/**@{*/
-
 /*
  * Thread
  */
@@ -955,7 +954,7 @@ typedef struct rt_thread *rt_thread_t;
 #define LWP_IS_USER_MODE(t) (0)
 #endif /* RT_USING_SMART */
 
-/**@}*/
+/** @} group_thread_management */
 
 /**
  * @addtogroup group_thread_comm