Fix missing tree view when userland threads are hidden

(thanks to Josh Stone)

ChangeLog

 
 What's new in version 0.8.2
 
+* BUGFIX: Fix missing tree view when userland threads are hidden
+  (thanks to Josh Stone)
 * BUGFIX: Fix for VPID on OpenVZ systems
   (thanks to Wolfgang Frisch)
 

ProcessList.c

@@ -563,9 +563,7 @@ static bool ProcessList_processEntries(ProcessList* this, char* dirname, Process
                process->pid = pid;
             }
          }
-         if (parent) {
-            process->tgid = parent->pid;
-         }
+         process->tgid = parent ? parent->pid : pid;
 
          if (showUserlandThreads && (!parent || pid != parent->pid)) {
             char subdirname[MAX_NAME+1];