return false when crash in model/node

Without this, config gets 'true' value, which is not string, and git
output will barf.

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/oxidized/node.rb b/lib/oxidized/node.rb
index 188c267..6bc2b0f 100644
--- a/lib/oxidized/node.rb
+++ b/lib/oxidized/node.rb
@@ -71,6 +71,7 @@ module Oxidized
           fh.puts err.backtrace
         end
         Log.error '%s raised %s with msg "%s", %s saved' % [self.ip, err.class, err.message, file]
+        return false
       end
     end