scripts/mod/modpost.c: fix commentary accordingly to last changes

The last commits
 37ed19d5cc
 5003bab82d
have introduced new behaviour of sec2annotation() method. However, the
commentary inside the method was left as before. Let's fix it accordingly.

Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andrew Morton <akpm@linux-foundation.org>
Acked-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>

scripts/mod/modpost.c

@@ -1193,6 +1193,9 @@ static Elf_Sym *find_elf_symbol2(struct elf_info *elf, Elf_Addr addr,
  * .cpuinit.data => __cpudata
  * .memexitconst => __memconst
  * etc.
+ *
+ * The memory of returned value has been allocated on a heap. The user of this
+ * method should free it after usage.
 */
 static char *sec2annotation(const char *s)
 {
@@ -1215,7 +1218,7 @@ static char *sec2annotation(const char *s)
 			strcat(p, "data ");
 		else
 			strcat(p, " ");
-		return r; /* we leak her but we do not care */
+		return r;
 	} else {
 		return "";
 	}