Fix conficts with HACKING doc

Don't compare a bool variable against the literal, "true".
Signed-off-by: NWei Jiangang <weijg.fnst@cn.fujitsu.com>
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

src/conf/nwfilter_conf.c

@@ -3416,7 +3416,7 @@ virNWFilterRuleDefDetailsFormat(virBufferPtr buf,
                break;
 
                case DATATYPE_BOOLEAN:
-                   if (item->u.boolean == true)
+                   if (item->u.boolean)
                        virBufferAddLit(buf, "true");
                    else
                        virBufferAddLit(buf, "false");

src/nwfilter/nwfilter_dhcpsnoop.c

@@ -1403,7 +1403,7 @@ virNWFilterDHCPSnoopThread(void *req0)
     }
 
     /* let creator know how well we initialized */
-    if (error == true || !threadkey || tmp < 0 || !worker ||
+    if (error || !threadkey || tmp < 0 || !worker ||
         ifindex != req->ifindex)
         req->threadStatus = THREAD_STATUS_FAIL;
     else

src/vz/vz_sdk.c

@@ -3293,7 +3293,7 @@ static int prlsdkAddDisk(PRL_HANDLE sdkdom,
         goto cleanup;
     }
 
-    if (bootDisk == true) {
+    if (bootDisk) {
         pret = PrlVmDev_GetIndex(sdkdisk, &devIndex);
         prlsdkCheckRetGoto(pret, cleanup);
 
@@ -3551,7 +3551,7 @@ prlsdkDoApplyConfig(virConnectPtr conn,
     for (i = 0; i < def->ndisks; i++) {
         bool bootDisk = false;
 
-        if (needBoot == true &&
+        if (needBoot &&
             def->disks[i]->device == VIR_DOMAIN_DISK_DEVICE_DISK) {
 
             needBoot = false;