Merge #1572: Linter: remove trailing whitespace

85be2cc linter: remove trailing whitespace (Tom Trevethan)

Pull request description:

  Remove trailing whitespace

ACKs for top commit:
  delta1:
    utACK 85be2cc

Tree-SHA512: 0fa3689b0c02add8af3173aa3233af36b008b6f81936ba2b27cd69365bc31b3a711c085d84377c1f52289e9406095669a9d1e35b0c18c4a5c77cbdc6e4df5681

Author: delta1

test/functional/feature_blocksign.py

@@ -202,7 +202,7 @@ def test_combineblocksigs_witnessscript_arg(self):
             assert "hex" in result
             assert "complete" in result
         else:
-            # Non-dynafed: 2-argument call must not be rejected by arg-count validation. 
+            # Non-dynafed: 2-argument call must not be rejected by arg-count validation.
             try:
                 result = node.combineblocksigs(block, [])
                 assert "hex" in result