fs/proc/kcore.c: using strlcpy() instead of strncpy()

For NUL terminated string, set '\0' at the end.
Signed-off-by: Zhao Hongjiang <zhaohongjiang@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/proc/kcore.c

@@ -408,7 +408,7 @@ static void elf_kcore_store_hdr(char *bufp, int nphdr, int dataoff)
 	prpsinfo.pr_zomb	= 0;
 
 	strcpy(prpsinfo.pr_fname, "vmlinux");
-	strncpy(prpsinfo.pr_psargs, saved_command_line, ELF_PRARGSZ);
+	strlcpy(prpsinfo.pr_psargs, saved_command_line, sizeof(prpsinfo.pr_psargs));
 
 	nhdr->p_filesz	+= notesize(&notes[1]);
 	bufp = storenote(&notes[1], bufp);