also skip metadata.txt files when creating h5 archive

watpy/utils/coreh5.py

@@ -105,6 +105,7 @@ class CoRe_h5(object):
 
                 # check this has some chances to be CoRe data
                 if '.txt' != os.path.splitext(f)[-1]: continue
+                if f.endswith('metadata.txt'): continue
                 vlmr = wfile_parse_name(f)
                 if vlmr == None: continue
                 var,l,m,r,c = vlmr