Ignore EOFError's as well as MagicMismatchErrors

This fixes the rather embarrassing issue of throwing on attempting to `readmeta()` an empty file

Author: staticfloat

src/Abstract/ObjectHandle.jl

@@ -124,7 +124,7 @@ function readmeta(io::IO)
         try
             return readmeta(io, T)
         catch e
-            if !isa(e,MagicMismatch)
+            if !isa(e,MagicMismatch) && !isa(e,EOFError)
                 rethrow(e)
             end
         end