virt-df: Turn errors into warnings when listing all domains.

This is a partial fix for RHBZ#538041.  When listing all domains,
don't die just because one domain fails, but keep trying for the
rest.

diff --git a/tools/virt-df b/tools/virt-df
index 78eb25c..6157e21 100755 (executable)
--- a/tools/virt-df
+++ b/tools/virt-df
@@ -165,7 +165,8 @@ if (@ARGV == 0) {
     if (@domnames) {
         print_title ();
         foreach (@domnames) {
-            do_df ($_);
+            eval { do_df ($_); };
+            warn $@ if $@;
         }
     }
 } else {