Changes between Initial Version and Version 1 of Ticket #18793, comment 2

Ticket #18793, comment 2

-              initial
+              v1
+) After installing Guest Additions on macOS, let's say 10.14, they fail to start.
+) GA fails to start because it tries to open file named '<NULL>' for log file, and macOS returns EACCES, and GA gives up and error-quits.
+) The reason for opening file named '<NULL>' is bug in GA's code:
+. After installing Guest Additions on macOS, let's say 10.14, they fail to start.
+. GA fails to start because it tries to open file named '<NULL>' for log file, and macOS returns EACCES, and GA gives up and error-quits.
+. The reason for opening file named '<NULL>' is bug in GA's code:
    In main(): static char *szLogFileName = NULL;
+   In vbclInitLogger(): Calls RTLogCreateEx with "%s", pszLogFileName
+   In vbclInitLogger(): Calls RTLogCreateEx with "%s", pszLogFileName
    so ("%s", NULL) becomes string "<NULL>"