cfm: Remove tabs from output.

OVS uses spaces for indentation in source code and it makes sense for it to
also use spaces for indentation in output.  Spaces also consume less
horizontal space in output, which often makes it easier to read.  This
commit transitions one part of output from tabs to spaces and updates
appropriate parts of the tests to match.

Signed-off-by: Ben Pfaff <blp@ovn.org>
Acked-by: Justin Pettit <jpettit@ovn.org>

lib/cfm.c

@@ -1032,30 +1032,30 @@ cfm_print_details(struct ds *ds, struct cfm *cfm) OVS_REQUIRES(mutex)
 
     fault = cfm_get_fault__(cfm);
     if (fault) {
-        ds_put_cstr(ds, "\tfault: ");
+        ds_put_cstr(ds, "  fault: ");
         ds_put_cfm_fault(ds, fault);
         ds_put_cstr(ds, "\n");
     }
 
     if (cfm->health == -1) {
-        ds_put_format(ds, "\taverage health: undefined\n");
+        ds_put_format(ds, "  average health: undefined\n");
     } else {
-        ds_put_format(ds, "\taverage health: %d\n", cfm->health);
+        ds_put_format(ds, "  average health: %d\n", cfm->health);
     }
-    ds_put_format(ds, "\topstate: %s\n", cfm->opup ? "up" : "down");
-    ds_put_format(ds, "\tremote_opstate: %s\n",
+    ds_put_format(ds, "  opstate: %s\n", cfm->opup ? "up" : "down");
+    ds_put_format(ds, "  remote_opstate: %s\n",
                   cfm->remote_opup ? "up" : "down");
-    ds_put_format(ds, "\tinterval: %dms\n", cfm->ccm_interval_ms);
-    ds_put_format(ds, "\tnext CCM tx: %lldms\n",
+    ds_put_format(ds, "  interval: %dms\n", cfm->ccm_interval_ms);
+    ds_put_format(ds, "  next CCM tx: %lldms\n",
                   timer_msecs_until_expired(&cfm->tx_timer));
-    ds_put_format(ds, "\tnext fault check: %lldms\n",
+    ds_put_format(ds, "  next fault check: %lldms\n",
                   timer_msecs_until_expired(&cfm->fault_timer));
 
     HMAP_FOR_EACH (rmp, node, &cfm->remote_mps) {
         ds_put_format(ds, "Remote MPID %"PRIu64"\n", rmp->mpid);
-        ds_put_format(ds, "\trecv since check: %s\n",
+        ds_put_format(ds, "  recv since check: %s\n",
                       rmp->recv ? "true" : "false");
-        ds_put_format(ds, "\topstate: %s\n", rmp->opup? "up" : "down");
+        ds_put_format(ds, "  opstate: %s\n", rmp->opup? "up" : "down");
     }
 }
 

tests/cfm.at

@@ -5,12 +5,12 @@ AT_CHECK([ovs-appctl cfm/show $1 | sed -e '/next CCM tx:/d' | sed -e '/next faul
 [dnl
 ---- $1 ----
 MPID $2: extended
-	average health: $3
-	opstate: $4
-	remote_opstate: $5
-	interval: $6
+  average health: $3
+  opstate: $4
+  remote_opstate: $5
+  interval: $6
 Remote MPID $7
-	opstate: $8
+  opstate: $8
 ])
 ])
 
@@ -19,11 +19,11 @@ AT_CHECK([ovs-appctl cfm/show $1 | sed -e '/next CCM tx:/d' | sed -e '/next faul
 [dnl
 ---- $1 ----
 MPID $2: extended
-	fault: $3
-	average health: $4
-	opstate: $5
-	remote_opstate: $6
-	interval: $7
+  fault: $3
+  average health: $4
+  opstate: $5
+  remote_opstate: $6
+  interval: $7
 ])
 ])
 

tests/ofproto-dpif.at

@@ -8590,7 +8590,7 @@ ovs-appctl time/stop
 ovs-appctl time/warp 5000 100
 # cfm/show should show 'recv' fault.
 AT_CHECK([ovs-appctl cfm/show | sed -n '/^.*fault:.*/p'], [0], [dnl
-	fault: recv
+  fault: recv
 ])
 # bfd/show should show 'up'.
 AT_CHECK([ovs-appctl bfd/show | sed -n '/^.*Session State:.*/p'], [0], [dnl
@@ -8613,7 +8613,7 @@ AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=false])
 ovs-appctl time/warp 5000 100
 # cfm/show should show 'recv' fault.
 AT_CHECK([ovs-appctl cfm/show | sed -n '/^.*fault:.*/p'], [0], [dnl
-	fault: recv
+  fault: recv
 ])
 # bfd/show should show 'down'.
 AT_CHECK([ovs-appctl bfd/show | sed -n '/^.*Session State:.*/p'], [0], [dnl
@@ -8633,7 +8633,7 @@ AT_CHECK([ovs-vsctl set Interface p0 bfd:enable=false])
 ovs-appctl time/warp 5000 100
 # cfm/show should show 'recv' fault.
 AT_CHECK([ovs-appctl cfm/show | sed -n '/^.*fault:.*/p'], [0], [dnl
-	fault: recv
+  fault: recv
 ])
 # bfd/show should show 'down'.
 AT_CHECK([ovs-appctl bfd/show | sed -n '/^.*Session State:.*/p'], [0], [dnl