fixup functional test linter

Author: instagibbs

test/functional/feature_pak.py

@@ -315,7 +315,7 @@ def compare(actual, expected):
         init_info3 = self.nodes[i_pak1].initpegoutwallet(xpub)
         assert(init_info != init_info3)
 
-        ## Test Descriptor PAK Support
+        # Test Descriptor PAK Support
 
         # Non-supported descriptors
         assert_raises_rpc_error(-8, "bitcoin_descriptor is not of any type supported: pkh(<xpub>), sh(wpkh(<xpub>)), wpkh(<xpub>), or <xpub>.", self.nodes[i_pak1].initpegoutwallet, "pk(tpubD6NzVbkrYhZ4WaWSyoBvQwbpLkojyoTZPRsgXELWz3Popb3qkjcJyJUGLnL4qHHoQvao8ESaAstxYSnhyswJ76uZPStJRJCTKvosUCJZL5B/0/*)")