Replaced failed to mount/dismount tape by failed to mount/dismount volume.

mediachanger/castorrmc/common/serror.c

@@ -336,8 +336,8 @@ char *sys_terrlist[ETMAXERR-ETBASEOFF+2] =
    "Tape-session error",
    "Invalid tape-file sequence-number",
    "Invalid tape-file file-size",
-   "Failed to mount tape",
-   "Failed to dismount tape",
+   "Failed to mount volume",
+   "Failed to dismount volume",
    "BAD ERROR NUMBER"
   };
 

mediachanger/castorrmc/h/serrno.h

@@ -341,8 +341,8 @@
 #define ETSESSIONERROR	ETBASEOFF+38    /* Tape-session error */
 #define ETINVALIDTFSEQ	ETBASEOFF+39    /* Invalid tape-file sequence-number */
 #define ETINVALIDTFSIZE	ETBASEOFF+40    /* Invalid tape-file file-size */
-#define ETMOUNTFAILED	ETBASEOFF+41    /* Failed to mount tape */
-#define ETDISMOUNTFAILED ETBASEOFF+42   /* Failed to dismount tape */
+#define ETMOUNTFAILED	ETBASEOFF+41    /* Failed to mount volume */
+#define ETDISMOUNTFAILED ETBASEOFF+42   /* Failed to dismount volume */
 #define ETMAXERR        ETBASEOFF+42
 
 /*