main: clean up PEP 8 warnings.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>

lib/newfol/main.py

@@ -1134,11 +1134,14 @@ def import_into(db, dtbname, dbtype, minfields=0, strict=False,
 
 def export_from(db, table, dbtype):
     vault = filemanip.FileStorage(dbtype, sys.stdout)
-    f = lambda x: True
+
+    def f(x):
+        return True
     if table is None and dbtype == "csv":
         raise newfol.exception.NewfolError(_("A table is required for csv"))
     if table is not None:
-        f = lambda x: x.table == table
+        def f(x):
+            x.table == table
     vault.store(db.records(f))