rdrmerge: fix tmp dir args

edosl0util/cli/rdrmerge.py

@@ -106,7 +106,7 @@ def merge_rdrs(inputs, not_before=None, not_after=None, workdir=None):
     if workdir is not None:
         workdir = working_directory(workdir)
     else:
-        workdir = TemporaryDirectory(os.getcwd())
+        workdir = TemporaryDirectory(dir=os.getcwd())
 
     # do each set of files separately to handle case where different products
     # are provided