Backup Server sybmultbuf mismatch error

[CR #333539] In some circumstances, the sybmultbuf entry in the $SYBASE_ASE/install/RUN_backupserver script does not point to the upgraded release area after an upgrade from pre-12.5 Adaptive Server to Adaptive Server 12.5.1. This results in a backupserver sybmultbuf mismatch. The error message you see when using backupserver may be similar to:

Dec 25 13:50:59 2003: A00: SYBMULTBUF ERROR: Unsupported revision number between backupserver and sybmultbuf. Got revision number=19, but expected revision number=18.

Workaround: Manually edit the $SYBASE_ASE/install/RUN_backupserver script so the -M option for sybmultbuf is pointing to the newly upgraded area, as well as the Backup Server.