Subject: [PATCH] Replace strncpy with memccpy to fix -Wstringop-truncation

From : https://patchwork.sourceware.org/patch/26437/

---
diff --git a/nis/nss_nisplus/nisplus-parser.c b/nis/nss_nisplus/nisplus-parser.c
index 8dc021e73d..b53284f889 100644
--- a/nis/nss_nisplus/nisplus-parser.c
+++ b/nis/nss_nisplus/nisplus-parser.c
@@ -87,7 +87,7 @@ _nss_nisplus_parse_pwent (nis_result *result, struct passwd *pw,
       if (len >= room_left)
 	goto no_more_room;

-      strncpy (first_unused, numstr, len);
+      memcpy (first_unused, numstr, len);
       first_unused[len] = '\0';
       numstr = first_unused;
     }
@@ -103,7 +103,7 @@ _nss_nisplus_parse_pwent (nis_result *result, struct passwd *pw,
       if (len >= room_left)
 	goto no_more_room;

-      strncpy (first_unused, numstr, len);
+      memcpy (first_unused, numstr, len);
       first_unused[len] = '\0';
       numstr = first_unused;
     }