[PATCH] documentation for strncpy()

this clarifies the documentation on the behavier of strncpy().
Signed-off-by: NDomen Puncer <domen@coderock.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

lib/string.c

@@ -86,6 +86,10 @@ EXPORT_SYMBOL(strcpy);
  *
  * The result is not %NUL-terminated if the source exceeds
  * @count bytes.
+ *
+ * In the case where the length of @src is less than  that  of
+ * count, the remainder of @dest will be padded with %NUL.
+ *
  */
 char * strncpy(char * dest,const char *src,size_t count)
 {