Move mergeCommand to global process struct
diff --git a/Process.c b/Process.c
index 5a3bf26..f6f4d48 100644
--- a/Process.c
+++ b/Process.c
@@ -517,6 +517,7 @@
    free(this->cmdline);
    free(this->procComm);
    free(this->procExe);
+   free(this->mergedCommand.str);
    free(this->tty_name);
 }