[syslinux:master] installer: fix 0 used as NULL

[syslinux-bot for H. Peter Anvin]

Commit-ID:  607617d7ff7ead7f8ff42c5f7598d7a240842811
Gitweb:     http://www.syslinux.org/commit/607617d7ff7ead7f8ff42c5f7598d7a240842811
Author:     H. Peter Anvin <hpa at zytor.com>
AuthorDate: Fri, 17 Jan 2014 16:56:11 -0800
Committer:  H. Peter Anvin <hpa at zytor.com>
CommitDate: Fri, 17 Jan 2014 16:56:11 -0800

installer: fix 0 used as NULL

0 used as NULL triggers a warning.

Signed-off-by: H. Peter Anvin <hpa at zytor.com>

---
 libinstaller/syslxopt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libinstaller/syslxopt.c b/libinstaller/syslxopt.c
index a73cd10..3fc5519 100644
--- a/libinstaller/syslxopt.c
+++ b/libinstaller/syslxopt.c
@@ -67,7 +67,7 @@ const struct option long_options[] = {
     {"mbr", 0, NULL, 'm'},	/* DOS/Win32 only */
     {"active", 0, NULL, 'a'},	/* DOS/Win32 only */
     {"device", 1, NULL, OPT_DEVICE},
-    {0, 0, 0, 0}
+    {NULL, 0, NULL, 0}
 };
 
 const char short_options[] = "t:fid:UuzsS:H:rvho:OM:ma";