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[libvirt] [PATCH] virsh: Fix error message on vol-create-from failure



If vol-create-from is failed due to 'input volume not found',
virsh outputs like this:
  $ sudo virsh vol-create-from testpool test-vol.xml test.img
  error: failed to get vol 'test.img', specifying --pool might help
  error: Storage volume not found: no storage vol with matching path
However, '--pool' is incorrect because it is already specified as
second argument ('testpool' in this case). It should be "--inputpool".

The patch fixes this by using pooloptname, which will be "inputpool"
in this case and "pool" in other cases, as error message.
---
 tools/virsh.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/virsh.c b/tools/virsh.c
index 72344f0..5544a41 100644
--- a/tools/virsh.c
+++ b/tools/virsh.c
@@ -15216,8 +15216,8 @@ vshCommandOptVolBy(vshControl *ctl, const vshCmd *cmd,
         if (pool)
             vshError(ctl, _("failed to get vol '%s'"), n);
         else
-            vshError(ctl, _("failed to get vol '%s', specifying --pool "
-                            "might help"), n);
+            vshError(ctl, _("failed to get vol '%s', specifying --%s "
+                            "might help"), n, pooloptname);
     }
 
     if (pool)
-- 
1.7.4.1


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