dtv: More detailed DiSEqC error messages.

Error messages were reused from time when there was no uncommitted
switch support. Now we have support for this feature, and we can
supply better error messages, because we know in more details what
has happened at times when error occured.
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

modules/access/dtv/linux.c

@@ -810,21 +810,22 @@ known:
           uncmd.msg_len = 4; /* length */
           if (ioctl (d->frontend, FE_DISEQC_SEND_MASTER_CMD, &uncmd) < 0)
           {
-              msg_Err (d->obj, "cannot send DiSEqC command: %m");
+              msg_Err (d->obj, "cannot send uncommitted DiSEqC command: %m");
               return -1;
           }
           /* Repeat uncommitted command */
           uncmd.msg[0] = 0xE1; /* framing: master, no reply, repeated TX */
           if (ioctl (d->frontend, FE_DISEQC_SEND_MASTER_CMD, &uncmd) < 0)
           {
-              msg_Err (d->obj, "cannot send DiSEqC command: %m");
+              msg_Err (d->obj,
+                       "cannot send repeated uncommitted DiSEqC command: %m");
               return -1;
           }
           msleep(125000); /* wait 125 ms before committed DiSEqC command */
         }
         if (ioctl (d->frontend, FE_DISEQC_SEND_MASTER_CMD, &cmd) < 0)
         {
-            msg_Err (d->obj, "cannot send DiSEqC command: %m");
+            msg_Err (d->obj, "cannot send committed DiSEqC command: %m");
             return -1;
         }
         msleep (54000 + 15000);