[PATCH 09/12] storage_conf: Use NULLSTR instead

[Osier Yang <jyang@xxxxxxxxxx>]

---
 src/conf/storage_conf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/conf/storage_conf.c b/src/conf/storage_conf.c
index 4c08cea..1f376ef 100644
--- a/src/conf/storage_conf.c
+++ b/src/conf/storage_conf.c
@@ -1485,7 +1485,7 @@ virStorageVolDefFormat(virStoragePoolDefPtr pool,
 
     virBufferAddLit(&buf, "<volume>\n");
     virBufferAsprintf(&buf,"  <name>%s</name>\n", def->name);
-    virBufferAsprintf(&buf,"  <key>%s</key>\n", def->key ? def->key : "(null)");
+    virBufferAsprintf(&buf,"  <key>%s</key>\n", NULLSTR(def->key));
     virBufferAddLit(&buf, "  <source>\n");
 
     if (def->source.nextent) {
-- 
1.8.1.4

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