Fix docstring formatting

stack.c

@@ -16,10 +16,10 @@
 #endif
 
 typedef struct {
-    uint8_t *buf;      //!< Pointer to the internal buffer */
+    uint8_t *buf;      //!< Pointer to the internal buffer
-    size_t   buf_sz;   //!< The length of the allocated buffer, in bytes */
+    size_t   buf_sz;   //!< The length of the allocated buffer, in bytes
-    size_t   read_ptr; //!< Indicates where to read/write */
+    size_t   read_ptr; //!< Indicates where to read/write
-    size_t   item_sz;  //!< The size of the contained item, in bytes */
+    size_t   item_sz;  //!< The size of the contained item, in bytes
 } Stack;
 
 typedef enum {