put trace_view data in /tmp

common/trace/trace_view.c

@@ -108,7 +108,7 @@ int open_trace(struct trace *trace, char *tracename)
 	}
 
 	trace->tmpfilename = malloc(100);
-	sprintf(trace->tmpfilename, "trace_view_XXXXXX");
+	sprintf(trace->tmpfilename, "/tmp/trace_view_XXXXXX");
 	fdmkstemp = mkstemp(trace->tmpfilename);
 
 	printf("Going to use %s temp file for '%s' data\n",