cleanup: Change datatype of disk->transient to boolean

src/conf/domain_conf.c

@@ -4641,7 +4641,7 @@ virDomainDiskDefParseXML(virDomainXMLOptionPtr xmlopt,
             } else if (xmlStrEqual(cur->name, BAD_CAST "shareable")) {
                 def->shared = true;
             } else if (xmlStrEqual(cur->name, BAD_CAST "transient")) {
-                def->transient = 1;
+                def->transient = true;
             } else if ((flags & VIR_DOMAIN_XML_INTERNAL_STATUS) &&
                        xmlStrEqual(cur->name, BAD_CAST "state")) {
                 /* Legacy back-compat. Don't add any more attributes here */

src/conf/domain_conf.h

@@ -676,7 +676,7 @@ struct _virDomainDiskDef {
     int startupPolicy; /* enum virDomainStartupPolicy */
     unsigned int readonly : 1;
     bool shared;
-    unsigned int transient : 1;
+    bool transient;
     virDomainDeviceInfo info;
     virStorageEncryptionPtr encryption;
     bool rawio_specified;